Endocrine System. Chapter 20. Endocrine Glands and Hormones. The Endocrine System. Endocrine glands

Size: px
Start display at page:

Download "Endocrine System. Chapter 20. Endocrine Glands and Hormones. The Endocrine System. Endocrine glands"

Transcription

1 Chapter 20 Endocrine System Endocrine Glands and Hormones The endocrine system consists of glands and tissues that secrete hormones Hormones are chemicals that affect other glands or tissues, many times far away from the site of hormone production Endocrine glands Secrete hormones into the bloodstream Hormones cause specific changes in target s Birgit Woelker, PhD The Endocrine System pineal gland hypothalamus gland (hypophysis) thyroid gland thymus gland parathyroid glands (posterior surface o f thyroid) adrenal glands pancreas ovary (female) testis (male)

2 Secretory vesicles Hormones are secreted by endocrine glands and neurosecretory s Blood vessel Blood vessel All hormone-secreting s make up the endocrine system Which works with the nervous system in regulating body activities Target Neurosecretory Target Endocrine Hormone molecules Hormone molecules A few chemicals ( e.g. adrenaline /epinephrine) serve both as hormones in the endocrine system and as chemical signals in the nervous system signals Neurotransmitter molecules Hormones affect target s by two main signaling mechanisms Water-soluble hormones such as proteins and amines Bind to plasmamembrane receptors on target s Water-soluble hormone (epinephrine) Target Relay molecules Glycogen Receptor protein Plasma membrane Signal transduction pathway Glucose Cellular response (in this example, glycogen breakdown)

3 Steroid hormones, such as the sex hormones estrogen and testosterone Diffuse through the plasma membrane of target s and bind to intraular receptors Lipid-soluble hormone (testosterone) Target DNA Nucleus mrna Receptor protein Hormonereceptor complex Transcription New protein Cellular response: activation of a gene and synthesis of new protein Some endocrine glands and their functions : Hormones released by the posterior gland and those that regulate the anterior gland Pituitary gland posterior lobe : Oxytocin, Antidiuretic Hormone (ADH), anterior lobe: Growth Hormone (GH), Thyroid stimulating Hormone (TSH), ACTH (Adrenocorticotropic Hormone) Pineal gland: Melatonin Thyroid gland: Thyroxine (T4) and Triiodothyronine (T3) Calcitonin Adrenal gland: Epinephrine (Adrenaline), Norepinephrine Pancreas: Insulin and Glucagon Testes: Androgens (Testosterone) Ovaries: Estrogens The hypothalamus, closely tied to the, connects the nervous and endocrine systems The hypothalamus exerts master control over the endocrine system By using the gland to relay directives to other glands The posterior Secretes oxytocin and antidiuretic hormone (ADH) Hormone Posterior Neurosecretory Brain Blood vessel Anterior Posterior Anterior Bone Oxytocin Uterine muscles Mammary glands ADH Kidney tubules

4 The anterior Secretes TSH, ACTH, FSH and LH, growth hormone, prolactin, and endorphins Releasing and inhibiting hormones from the hypothalamus Control the secretion of several other hormones Neurosecretory Blood vessel Releasing hormones from hypothalamus TSH for instance controls the secretion of T4 and T3 from the Thyroid gland Endocrine s of the anterior Pituitary hormones TSH ACTH FSH and LH Thyroid Adrenal cortex Growth Prolactin Endorphins hormone (PRL) (GH) Testes or Entire ovaries body Mammary glands (in mammals) Pain receptors in the brain Secretion of thyroxine by the thyroid gland Is controlled by a negative-feedback mechanism Inhibition HORMONES AND HOMEOSTASIS The thyroid regulates development and metabolism Two hormones from the thyroid gland, T 4 and T 3 Regulate an animal s development and metabolism TRH Anterior Inhibition TSH Thyroid Thyroxine

5 Thyroid imbalance can cause disease like Grave s disease Negative feedback Maintains homeostatic levels of T 4 and T 3 in the blood No inhibition TRH Anterior No inhibition Thyroid TSH No iodine Insufficient T 4 and T 3 produced Marty Feldman Thyroid grows to form goiter Hormones from the thyroid and parathyroids maintain calcium homeostasis Blood calcium level is regulated by a tightly balanced antagonism Between calcitonin from the thyroid and parathyroid hormone from the parathyroid glands Calcium homeostasis Thyroid gland releases calcitonin Stimulus: Rising blood Ca 2+ level (imbalance) Stimulates Ca 2+ release from bones Blood Ca 2+ rises Active vitamin D Increases Ca 2+ uptake in kidneys Calcitonin Homeostasis: Normal blood calcium level (about 10 mg/100ml) Increases Ca 2+ uptake in intestines PTH Stimulates Ca 2+ deposition in bones Reduces Ca 2+ uptake in kidneys Blood Ca 2+ falls Stimulus: Falling blood Ca 2+ level (imbalance) Parathyroid glands release parathyroid hormone (PTH) Parathyroid gland

6 Pancreatic hormones regulate blood glucose levels The pancreas secretes two hormones, insulin and glucagon that control blood glucose Glucose homeostasis Beta s of pancreas stimulated to release insulin into the blood High blood glucose level Insulin Body s take up more glucose Liver takes up glucose and stores it as glycogen Blood glucose level declines to a set point; stimulus for insulin release diminishes Insulin Signals s to use and store glucose Glucagon Causes s to release stored glucose into the blood Stimulus: Rising blood glucose level (e.g., after eating a carbohydrate-rich meal) Blood glucose level rises to set point; stimulus for glucagon release diminishes Homeostasis: Normal blood glucose level (about 90 mg/100ml) Liver breaks down glycogen and releases glucose to the blood Glucagon Stimulus: Declining blood glucose level (e.g., after skipping a meal) Alpha s of pancreas stimulated to release glucagon into the blood Diabetes is a common endocrine disorder Diabetes mellitus Results from a lack of insulin or a failure of s to respond to it Diabetes can be detected 400 By a test called a glucose tolerance test Blood glucose (mg/100ml) Diabetic 100 Normal 50 0 Figure Hours after glucose ingestion

7 The adrenal glands mobilize responses to stress Hormones from the adrenal glands Help maintain homeostasis when the body is stressed signals from the hypothalamus Stimulate the adrenal medulla to secrete epinephrine and norepinephrine, which quickly trigger the fight-or-flight responses ACTH from the causes the adrenal cortex to secrete glucocorticoids and mineralocorticoids Which boost blood pressure and blood glucose in response to long-term stress How the adrenal glands control our responses to stress Kidney Adrenal gland Adrenal medulla Adrenal cortex Spinal cord (cross section) signals ACTH Stress Releasing hormone Anterior Blood vessel Adrenal medulla ACTH Adrenal cortex Epinephrine and norepinephrine Mineralocorticoids Glucocorticoids Short-term stress response Long-term stress response 1. Glycogen broken down to glucose; increased blood glucose 2. Increased blood pressure 3. Increased breathing rate 4. Increased metabolic rate 5. Change in blood-flow patterns, leading to increased alertness and decreased digestive and kidney activity Mineralocorticoids 1. Retention of sodium ions and water by kidneys 2. Increased blood volume and blood pressure Glucocorticoids 1. Proteins and fats broken down and converted to glucose, leading to increased blood glucose 2. Immune system may be suppressed

8 Glucocorticoids offer relief from pain, but not without serious risks Glucocorticoids relieve inflammation and pain But they can mask injury and suppress immunity The gonads secrete sex hormones Estrogens, progestins, and androgens are steroid sex hormones Produced by the gonads in response to signals from the hypothalamus and Bill Walton Estrogens and progestins stimulate the development of female characteristics and maintain the female reproductive system Androgens, such as testosterone Trigger the development of male characteristics

9 Establishing links between androgens and human male aggression Has been found to be problematic Does testosterone play a role in aggressive behavior?

Chemical Regulation. Chapter 26. Testosterone and Male Aggression: Is There a Link? THE NATURE OF CHEMICAL REGULATION

Chemical Regulation. Chapter 26. Testosterone and Male Aggression: Is There a Link? THE NATURE OF CHEMICAL REGULATION Chapter 6 Chemical Regulation PowerPoint Lectures for Biology: Concepts and Connections, Fifth Edition Campbell, Reece, Taylor, and Simon Testosterone and Male Aggression: Is There a Link? Among male animals,

More information

Testosterone and other male hormones seem to be related to aggressive behavior in some species

Testosterone and other male hormones seem to be related to aggressive behavior in some species Testosterone and Male Aggression Testosterone and other male hormones seem to be related to aggressive behavior in some species In the fish species Oreochromis mossambicus, elevated levels have been found

More information

Chapter 20. Endocrine System Chemical signals coordinate body functions Chemical signals coordinate body functions. !

Chapter 20. Endocrine System Chemical signals coordinate body functions Chemical signals coordinate body functions. ! 26.1 Chemical signals coordinate body functions Chapter 20 Endocrine System! Hormones Chemical signals Secreted by endocrine glands Usually carried in the blood Cause specific changes in target cells Secretory

More information

Chapter 20 Endocrine System

Chapter 20 Endocrine System Chapter 20 Endocrine System The endocrine system consists of glands and tissues that secrete Hormones are chemicals that affect other glands or tissues, many times far away from the site of hormone production

More information

Chapter 26. Hormones and the Endocrine System. Lecture by Edward J. Zalisko

Chapter 26. Hormones and the Endocrine System. Lecture by Edward J. Zalisko Chapter 26 Hormones and the Endocrine System PowerPoint Lectures for Biology: Concepts & Connections, Sixth Edition Campbell, Reece, Taylor, Simon, and Dickey Copyright 2009 Pearson Education, Inc. Lecture

More information

BIOLOGY. CONCEPTS & CONNECTIONS Fourth Edition. Neil A. Campbell Jane B. Reece Lawrence G. Mitchell Martha R. Taylor. CHAPTER 26 Chemical Regulation

BIOLOGY. CONCEPTS & CONNECTIONS Fourth Edition. Neil A. Campbell Jane B. Reece Lawrence G. Mitchell Martha R. Taylor. CHAPTER 26 Chemical Regulation BIOLOGY CONCEPTS & CONNECTIONS Fourth Edition Neil A. Campbell Jane B. Reece Lawrence G. Mitchell Martha R. Taylor CHAPTER 26 Chemical Regulation Modules 26.1 26.5 From PowerPoint Lectures for Biology:

More information

Chapter 26 Hormones and the

Chapter 26 Hormones and the Chapter 6 Hormones and the Endocrine System Introduction In lions, the hormone testosterone promotes the development and maintenance of male traits including growth and maintenance of the mane and increased

More information

Endocrine System Hormones. AP Biology

Endocrine System Hormones. AP Biology Endocrine System Hormones 2007-2008 Regulation Why are hormones needed? u chemical messages from one body part to another u communication needed to coordinate whole body u daily homeostasis & regulation

More information

Endocrine System Hormones (Ch. 45)

Endocrine System Hormones (Ch. 45) Endocrine System Hormones (Ch. 45) Regulation Why are hormones needed? chemical messages from one body part to another communication needed to coordinate whole body daily homeostasis & regulation of large

More information

CATEGORY Endocrine System Review. Provide labels for the following diagram CHAPTER 13 BLM

CATEGORY Endocrine System Review. Provide labels for the following diagram CHAPTER 13 BLM CHAPTER 13 BLM 13.1.1 CATEGORY Endocrine System Review Provide labels for the following diagram. 1. 6. 2. 7. 3. 8. 4. 9. 5. 10. CHAPTER 13 BLM 13.1.2 OVERHEAD Glands and Their Secretions Endocrine gland

More information

Chapter 45-Hormones and the Endocrine System. Simple Hormone Pathways

Chapter 45-Hormones and the Endocrine System. Simple Hormone Pathways Chapter 45-Hormones and the Endocrine System Simple Hormone s Low ph in duodenum Hormones are released from an endocrine, travel through the bloodstream, and interact with the receptor or a target to cause

More information

Chapter 11 - Endocrine System

Chapter 11 - Endocrine System Chapter 11 - Endocrine System 11.1 Introduction A. The endocrine system is made up of the cells, tissues, and organs that secrete hormones into body fluids. B. The body has two kinds of glands, exocrine

More information

Chapter 12 Endocrine System (export).notebook. February 27, Mar 17 2:59 PM. Mar 17 3:09 PM. Mar 17 3:05 PM. Mar 17 3:03 PM.

Chapter 12 Endocrine System (export).notebook. February 27, Mar 17 2:59 PM. Mar 17 3:09 PM. Mar 17 3:05 PM. Mar 17 3:03 PM. Endocrine System Hormones Chemical messengers released directly into the bloodstream Regulate: *May have wide spread effect or only affect certain tissues ** : cells with receptors that respond to specific

More information

Endocrine System. Modified by M. Myers

Endocrine System. Modified by M. Myers Endocrine System Modified by M. Myers 1 The Endocrine System 2 Endocrine Glands The endocrine system is made of glands & tissues that secrete hormones. Hormones are chemicals messengers influencing a.

More information

Endocrine System Notes

Endocrine System Notes Endocrine System Notes is the tendency to maintain a stable internal environment. - parts of the body that secrete hormones directly into the body. - parts of the body that make secretions which travel

More information

BIOL 2458 A&P II CHAPTER 18 SI Both the system and the endocrine system affect all body cells.

BIOL 2458 A&P II CHAPTER 18 SI Both the system and the endocrine system affect all body cells. BIOL 2458 A&P II CHAPTER 18 SI 1 1. Both the system and the endocrine system affect all body cells. 2. Affect on target cells by the system is slow. Affect on target cells by the system is fast. INTERCELLULAR

More information

The Endocrine System

The Endocrine System The Endocrine System The nervous system allows the body to respond to various stimuli in a quick manner and this allows for homeostasis. The endocrine system, using hormones also allows the body to respond

More information

BIO 116 Practice Assignment 1 The Endocrine System and Blood This is not a required assignment but it is recommended.

BIO 116 Practice Assignment 1 The Endocrine System and Blood This is not a required assignment but it is recommended. BIO 116 Practice Assignment 1 The Endocrine System and Blood This is not a required assignment but it is recommended. 1. Match the following glands of the endocrine system with the appropriate label 1.

More information

Ch45: Endocrine System

Ch45: Endocrine System Ch45: Endocrine System Endocrine System Homeostasis is the tendency to maintain a stable internal environment. Function = with hormones to maintain homeostasis Works with nervous system Anatomy Location:

More information

Anatomy and Physiology. The Endocrine System

Anatomy and Physiology. The Endocrine System Anatomy and Physiology The Endocrine System The endocrine system includes anything that secretes hormones directly into body fluids. Endocrine glands include: the thyroid, parathyroid, adrenal, kidney,

More information

The Endocrine System. I. Overview of the Endocrine System. II. Three Families of Hormones. III. Hormone Receptors. IV. Classes of Hormone Receptor

The Endocrine System. I. Overview of the Endocrine System. II. Three Families of Hormones. III. Hormone Receptors. IV. Classes of Hormone Receptor The Endocrine System I. Overview of the Endocrine System A. Regulates long term metabolic processes B. Releases hormones from endocrine cells 1. Hormones are chemicals 2. Alter metabolism of cells 3. Release

More information

The Endocrine System 7/6/2015. Outline. Function of the Endocrine System

The Endocrine System 7/6/2015. Outline. Function of the Endocrine System The Endocrine System Biology 105 Lecture 13 Chapter 10 Outline I. Function of endocrine system II. Hormones and neurotransmitters III. Types of hormones and their actions IV. Endocrine glands/organs and

More information

Hormones and the Endocrine System

Hormones and the Endocrine System Chapter 45 Hormones and the Endocrine System PowerPoint Lectures for Biology, Eighth Edition Lectures by Chris Romero, updated by Erin Barley with contributions from Joan Sharp and Janette Lewis Copyright

More information

Endocrine System Hormones

Endocrine System Hormones Endocrine System Hormones 2007-2008 Regulation Why are hormones needed? chemical messages from one body part to another communication needed to coordinate whole body homeostasis & regulation metabolism

More information

Endocrine System. Chemical Control

Endocrine System. Chemical Control Endocrine System Chemical Control Endocrine System - the system that secretes hormones in the body - hormones can last for minutes or for hours - a major gland, once called the master gland, is the pituitary

More information

Chapter 11. Endocrine System

Chapter 11. Endocrine System Chapter 11 Endocrine System 1 Introduction A. The endocrine system is made up of the cells, tissues, and organs that secrete hormones into body fluids. B. Hormones diffuse into the bloodstream to act target

More information

Ch45: Endocrine System

Ch45: Endocrine System Ch45: Endocrine System Endocrine System Homeostasis is the tendency to maintain a stable internal environment. Function = coordinate and control the body with hormones to maintain homeostasis Works with

More information

Human Biochemistry. Hormones

Human Biochemistry. Hormones Human Biochemistry Hormones THE ENDOCRINE SYSTEM THE ENDOCRINE SYSTEM THE ENDOCRINE SYSTEM The ENDOCRINE SYSTEM = the organ system that regulates internal environment conditions by secreting hormones into

More information

Additional Case Study: Glands and Hormones

Additional Case Study: Glands and Hormones Student Worksheet Additional Case Study: Glands and Hormones LSM 8.5-2 This activity can be done individually or in pairs. Prepare the pieces ahead of time. Materials For each student (or pair): one copy

More information

BIOLOGY - CLUTCH CH.45 - ENDOCRINE SYSTEM.

BIOLOGY - CLUTCH CH.45 - ENDOCRINE SYSTEM. !! www.clutchprep.com Chemical signals allow cells to communicate with each other Pheromones chemical signals released to the environment to communicate with other organisms Autocrine signaling self-signaling,

More information

Hormones and the Endocrine System

Hormones and the Endocrine System Chapter 45 Hormones and the Endocrine System PowerPoint Lectures for Biology, Eighth Edition Overview: The Body s Long-Distance Regulators Animal hormones are chemical signals that are secreted into the

More information

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 26 Hormones and the Endocrine System Multiple-Choice Questions

Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 26 Hormones and the Endocrine System Multiple-Choice Questions Campbell's Biology: Concepts and Connections, 7e (Reece et al.) Chapter 26 Hormones and the Endocrine System 26.1 Multiple-Choice Questions 1) Hormones are chemicals produced by the endocrine system that

More information

Hormones and the Endocrine System Chapter 45. Intercellular communication. Paracrine and Autocrine Signaling. Signaling by local regulators 11/26/2017

Hormones and the Endocrine System Chapter 45. Intercellular communication. Paracrine and Autocrine Signaling. Signaling by local regulators 11/26/2017 Hormones and the Endocrine System Chapter 45 Intercellular communication Endocrine signaling Local regulators Paracrine and autocrine signaling Neuron signaling Synaptic and neuroendocrine signaling Paracrine

More information

Chapter 8.2 The Endocrine System

Chapter 8.2 The Endocrine System Major Endocrine Organs Hypothalamus Pineal Gland Pituitary Gland Thyroid Gland Thymus Gland Adrenal Glands Pancreas Ovaries (Female) Testis (Male) Chapter 8.2 The Endocrine System The endocrine system

More information

Homeostasis Through Chemistry. The Endocrine System Topic 6.6

Homeostasis Through Chemistry. The Endocrine System Topic 6.6 Homeostasis Through Chemistry The Endocrine System Topic 6.6 Comparing NS & ES Animals have two systems of internal communication and regulation The nervous system Response time: Fast, quick Signals: electrical

More information

Endocrine secretion cells secrete substances into the extracellular fluid

Endocrine secretion cells secrete substances into the extracellular fluid Animal Hormones Concept 30.1 Hormones Are Chemical Messengers Endocrine secretion cells secrete substances into the extracellular fluid Exocrine secretion cells secrete substances into a duct or a body

More information

Endocrine System Worksheet

Endocrine System Worksheet Endocrine System Worksheet Name Section A: Endocrine vs. Nervous Systems The endocrine and nervous systems function to regulate body activities. Since both systems are involved in regulation, how does

More information

Chapter 13 worksheet

Chapter 13 worksheet Name: Chapter 13 worksheet The Endocrine System Please label the: hypothalamus pineal gland pituitary gland thyroid gland parathyroid gland thymus heart stomach liver adrenal glands kidneys pancreas small

More information

Adrenal Glands. Adrenal Glands. Adrenal Glands. Adrenal Glands. Adrenal Glands 4/12/2016. Controlled by both nerves and hormones.

Adrenal Glands. Adrenal Glands. Adrenal Glands. Adrenal Glands. Adrenal Glands 4/12/2016. Controlled by both nerves and hormones. Glands http://www.hawaiilife.com/articles/2012/03/good-news-vacation-rental-owners/ 70 Figure 10.14a gland Glands cortex Mineralocorticoids Gonadocorticoids Glucocorticoids medulla Epinephrine Norepinephrine

More information

Page 1. Chapter 37: Chemical Control of the Animal Body - The Endocrine System

Page 1. Chapter 37: Chemical Control of the Animal Body - The Endocrine System Chapter 37: Chemical Control of the Animal Body - The Endocrine System Endocrine System: Hormones and the various cells that secrete and receive them Types of Glands: 1) Endocrine Glands: Release substances

More information

Page 1. Chapter 37: Chemical Control of the Animal Body - The Endocrine System. Target Cells: Cells specialized to respond to hormones

Page 1. Chapter 37: Chemical Control of the Animal Body - The Endocrine System. Target Cells: Cells specialized to respond to hormones Chapter 37: Chemical Control of the Animal Body - The Endocrine System Endocrine System: Hormones and the various cells that secrete and receive them Types of Glands: 1) Endocrine Glands: Release substances

More information

ENDOCRINE SYSTEM CLASS NOTES

ENDOCRINE SYSTEM CLASS NOTES ENDOCRINE SYSTEM CLASS NOTES The endocrine system is a collection of glands that secrete hormones directly into the circulatory system to be carried toward a distant target organ. These hormones will be

More information

The Endocrine System/Hormones

The Endocrine System/Hormones The Endocrine System/Hormones Controls many body functions exerts control by releasing special chemical substances into the blood called hormones Hormones affect other endocrine glands or body systems

More information

Endocrine system. Coordination & regulation Glands Hormones

Endocrine system. Coordination & regulation Glands Hormones Endocrine system Coordination & regulation Glands Hormones Endocrine system structures Anatomy - Dispersed system of glands that communicate with each other & all body cells via hormones. Endocrine glands:

More information

Endocrine System. Endocrine vs. Exocrine. Bio 250 Human Anatomy & Physiology

Endocrine System. Endocrine vs. Exocrine. Bio 250 Human Anatomy & Physiology Endocrine System Bio 250 Human Anatomy & Physiology Endocrine vs. Exocrine Endocrine glands secrete their products called hormones into body fluids (the internal environment) Exocrine glands secrete their

More information

Endocrine System. Chapter 9

Endocrine System. Chapter 9 Endocrine System Chapter 9 Endocrine Organs Hormones Chemical messengers that are released from one tissue and transported through blood to a target tissue. Chemical classification: amino acids, steroids,

More information

Page 1. Skill: Knowledge/Comprehension

Page 1. Skill: Knowledge/Comprehension Chapter 45 Hormones and the Endocrine System Multiple-Choice Questions 1) Which of the following statements about hormones is incorrect? A) They are produced by endocrine glands. B) They are modified amino

More information

Endocrine system. Coordination & regulation Glands Hormones

Endocrine system. Coordination & regulation Glands Hormones Endocrine system Coordination & regulation Glands Hormones Endocrine system structures Anatomy - Dispersed system of glands that communicate with each other & all body cells via hormones. Endocrine glands:

More information

The Endocrine System. Lab Exercise 31. Objectives. Introduction

The Endocrine System. Lab Exercise 31. Objectives. Introduction Lab Exercise The Endocrine System Objectives - Become familiar with the major endocrine glands and their location. - Learn some of the hormones produced by each gland. - Become familiar with the anatomy

More information

Endocrine System. Chapter 18. Introduction. How Hormones Work. How Hormones Work. The Hypothalamus & Endocrine Regulation

Endocrine System. Chapter 18. Introduction. How Hormones Work. How Hormones Work. The Hypothalamus & Endocrine Regulation Introduction Endocrine System Chapter 18 The endocrine system consists of cells, tissues, & organs that secrete into the blood Hormone an organic substance secreted by a cell that has an effect on the

More information

Hormones and the Endocrine System

Hormones and the Endocrine System LECTURE PRESENTATIONS For CAMPBELL BIOLOGY, NINTH EDITION Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson Chapter 45 Hormones and the Endocrine System

More information

I. Endocrine System & Hormones Figure 1: Human Endocrine System

I. Endocrine System & Hormones Figure 1: Human Endocrine System I. Endocrine System & Hormones Figure 1: Human Endocrine System Endocrine System: a) Endocrine glands are ductless since they lack specific vessels for the transport of hormones throughout the body. Instead,

More information

The Endocrine System. By Carl Antiado, Marco Habana, Cameron Loewen, and Nikki Ooka

The Endocrine System. By Carl Antiado, Marco Habana, Cameron Loewen, and Nikki Ooka The Endocrine System By Carl Antiado, Marco Habana, Cameron Loewen, and Nikki Ooka Standards 2.C.2 : Organisms respond to changes in their external environments. 4.A.4: Organisms exhibit complex properties

More information

The Endocrine System. Endocrine System. 1

The Endocrine System. Endocrine System. 1 The Endocrine System The Endocrine System Second-messenger system of the body Uses chemical messengers (hormones) that are released into the blood Hormones control several major processes Reproduction

More information

BIOLOGY. 1. Overview of Endrocrine Hormone Signaling 10/22/2014. Hormones and the Endocrine System. The Body s Long-Distance Regulators

BIOLOGY. 1. Overview of Endrocrine Hormone Signaling 10/22/2014. Hormones and the Endocrine System. The Body s Long-Distance Regulators CAMPBELL BIOLOGY TENTH EDITION 45 Reece Urry Cain Wasserman Minorsky Jackson Hormones and the Endocrine System Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick 1. Overview of Endrocrine

More information

HOLE S HA&P CHAPTER THIRTEEN

HOLE S HA&P CHAPTER THIRTEEN HUMAN ANATOMY & PHYSIOLOGY ENDOCRINE SYSTEM Chapter 13 Notes OBJECTIVES HOLE S HA&P CHAPTER THIRTEEN 1. Define hormone. 2. Distinguish between endocrine and exocrine glands. 3. Explain what makes a cell

More information

Endocrine Control. Chapter 35

Endocrine Control. Chapter 35 Endocrine Control Chapter 35 Impacts, Issues Hormones in Balance Many chemicals we release into the environment (such as the herbicide atrazine) have disruptive hormonal effects 35.1 Introducing the Vertebrate

More information

Chapter 18: Endocrine Glands

Chapter 18: Endocrine Glands Chapter 18: Endocrine Glands I. Functions of the Endocrine System A. List and describe the eight major functions of the endocrine system: 1. 2. 3. 4. 5. 6. 7. 8. Page 1 of 19 C II. Pituitary Gland and

More information

GENERAL CHARACTERISTICS OF THE ENDOCRINE SYSTEM FIGURE 17.1

GENERAL CHARACTERISTICS OF THE ENDOCRINE SYSTEM FIGURE 17.1 GENERAL CHARACTERISTICS OF THE ENDOCRINE SYSTEM FIGURE 17.1 1. The endocrine system consists of glands that secrete chemical signals, called hormones, into the blood. In addition, other organs and cells

More information

Unit 9 - The Endocrine System 1

Unit 9 - The Endocrine System 1 Unit 9 - The Endocrine System 1 I. Unit 9: The Endocrine System A. The Endocrine System 1. Second-messenger system of the body 2. Uses chemical messengers (hormones) that are released into the blood 3.

More information

Human Biology Chapter 11: The Endocrine System *

Human Biology Chapter 11: The Endocrine System * OpenStax-CNX module: m58003 1 Human Biology Chapter 11: The Endocrine System * Willy Cushwa Based on Endocrine System by OpenStax This work is produced by OpenStax-CNX and licensed under the Creative Commons

More information

Human Anatomy and Physiology - Problem Drill 16: The Endocrine System

Human Anatomy and Physiology - Problem Drill 16: The Endocrine System Human Anatomy and Physiology - Problem Drill 16: The Endocrine System Question No. 1 of 10 The endocrine system is made up of a number of organs and glands. Which one of the following is not an organ or

More information

BODY CONTROL SYSTEMS

BODY CONTROL SYSTEMS BODY CONTROL SYSTEMS THE ENDOCRINE SYSTEM - 1 of the 2 chemical control systems of the human body - function of the endocrine system: regulate body functions = maintain homeostasis ie. physical and mental

More information

Refer to the figure below, a diagram of a renal tubule, to answer the following questions.

Refer to the figure below, a diagram of a renal tubule, to answer the following questions. 1. The digestion and utilization of which nutrient creates the greatest need for osmoregulation by the kidneys? a. protein b. starch c. fat d. oil e. cellulose 2. Which of the following is true of urea?

More information

Biology 30. Morinville Community High School. Unit 2: Endocrine System. Name:

Biology 30. Morinville Community High School. Unit 2: Endocrine System. Name: Biology 30 Morinville Community High School Unit 2: Endocrine System Name: 2 Endocrine System Unit Outline Chapter 13 text p. 434-471 Key Concept A: The endocrine system and nervous system both mediate

More information

/30/17 Ch 8: Muscular System 1. Table of Contents # Date Title Page # 03/13/17 Ch 10: Somatic and Special Senses 53

/30/17 Ch 8: Muscular System 1. Table of Contents # Date Title Page # 03/13/17 Ch 10: Somatic and Special Senses 53 Table of Contents # Date Title Page # 1. 01/30/17 Ch 8: Muscular System 1 2. 3. 4. 5. 6. 7. 02/14/17 Ch 9: Nervous System 12 03/13/17 Ch 10: Somatic and Special Senses 53 03/27/17 Ch 11: Endocrine System

More information

Endocrine System. Part 2

Endocrine System. Part 2 Endocrine System Part 2 Thyroid Gland Saddle bag shaped gland Largest endocrine gland in the body 3 hormones Throxin Triiodothyronine Calcitonin Thyroid hormone Pineal gland Hypothalamus Pituitary gland

More information

Endocrine Notes Mrs. Laux AP Biology I. Endocrine System consists of endocrine glands (ductless), cells, tissues secrete hormones

Endocrine Notes Mrs. Laux AP Biology I. Endocrine System consists of endocrine glands (ductless), cells, tissues secrete hormones I. Endocrine System consists of endocrine glands (ductless), cells, tissues secrete hormones regulates metabolism, fluid balance, growth, reproduction A. Hormones 1. chemical signals-cell to cell communication

More information

9.2: The Major Endocrine Organs

9.2: The Major Endocrine Organs 9.2: The Major Endocrine Organs ANATOMY & PHYSIOLOGY The Major Endocrine Organs Below is a list of the major endocrine organs that we will worry about for this class We will look at hormones associated

More information

4.04 Understand the Functions and Disorders of the ENDOCRINE SYSTEM Understand the functions and disorders of the endocrine system

4.04 Understand the Functions and Disorders of the ENDOCRINE SYSTEM Understand the functions and disorders of the endocrine system 4.04 Understand the Functions and Disorders of the 4.04 Understand the Functions and Disorders of the What are the functions of the endocrine system? What are some disorders of the endocrine system? How

More information

LESSON ASSIGNMENT. After completing this lesson, you should be able to:

LESSON ASSIGNMENT. After completing this lesson, you should be able to: LESSON ASSIGNMENT LESSON 11 The Human Endocrine System. LESSON ASSIGNMENT Paragraphs 11-1 through 11-18. LESSON OBJECTIVES After completing this lesson, you should be able to: 11-1. Given a hormone, identify

More information

HUMAN ENDOCRINE SYSTEM

HUMAN ENDOCRINE SYSTEM HUMAN ENDOCRINE SYSTEM The human endocrine system consists of ductless glands which releases hormones directly to the bloodstream. Glands are any tissue or organ which secretes chemical compounds useful

More information

HORMONES AND CELL SIGNALLING

HORMONES AND CELL SIGNALLING HORMONES AND CELL SIGNALLING TYPES OF CELL JUNCTIONS CHEMICAL SIGNALS AND MODES OF ACTION Endocrine system produces chemical messages = hormones that are transported from endocrine gland to target cell

More information

Essen%al knowledge standards

Essen%al knowledge standards Essen%al knowledge standards 2.C.1: Organisms use feedback mechanisms to maintain their internal environments and respond to external environmental changes 3.B.2: A variety of intercellular and intracellular

More information

BIOLOGY. Hormones and the Endocrine System CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson

BIOLOGY. Hormones and the Endocrine System CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 45 Hormones and the Endocrine System Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick The Body s Long-Distance

More information

Unit Eleven - The Endocrine System

Unit Eleven - The Endocrine System Unit Eleven - The Endocrine System I. Introduction A. Overview: the endocrine system and nervous system work to control homeostasis within the body. The endocrine system operates at a much pace but the

More information

4/23/2018. Endocrine System: Overview. Endocrine System: Overview

4/23/2018. Endocrine System: Overview. Endocrine System: Overview Endocrine System: Overview With nervous system, coordinates and integrates activity of body cells Influences metabolic activities via hormones transported in blood Response slower but longer lasting than

More information

Lab Activity 21. Endocrine System Glucometer. Portland Community College BI 232

Lab Activity 21. Endocrine System Glucometer. Portland Community College BI 232 Lab Activity 21 Endocrine System Glucometer Portland Community College BI 232 2 Hormone Functions ACTH (adrenocorticotropic hormone) Regulates the activity of the cortex of the adrenal gland TSH (thyroid

More information

Chapter 16: Endocrine System 1

Chapter 16: Endocrine System 1 Ch 16 Endocrine System Bi 233 Endocrine system Endocrine System: Overview Body s second great controlling system Influences metabolic activities of cells by means of hormones Slow signaling Endocrine glands

More information

Target cells only respond to specific signals Different target cells have different kinds of receptors in their membranes or cytoplasm

Target cells only respond to specific signals Different target cells have different kinds of receptors in their membranes or cytoplasm 1 2 3 4 5 6 BIO 1102 Lec. 9 (Guided): Chapter 13 The Endocrine System The Endocrine System Controls many body functions through chemical signals Hormones Carried in blood stream Affect target cells Composed

More information

Chapter 21. Human Endocrine System

Chapter 21. Human Endocrine System Chapter 21 Human Endocrine System Endocrine System Consist of endocrine glands that secrete hormones which regulate a wide range of activities in humans Hormones- are secreted by glands and diffuse directly

More information

CHEMICAL COORDINATION & INTEGRATION

CHEMICAL COORDINATION & INTEGRATION CHEMICAL COORDINATION & INTEGRATION 1. The hormone responsible for Fight and Flight response is a) Adrenalin** b) Thyroxine c) ADH d) Oxytocin 2. The primary androgen produced by males is. a) Epinephrine

More information

Chapter 16 - Endocrine system

Chapter 16 - Endocrine system Chapter 16 - Endocrine system I. Overview Nervous control is fast but short-lived Hormonal control is slow and lasts a long time A. Organs: hypothalamus, pituitary (hypophysis), thyroid, parathyroid, adrenal,

More information

The Endocrine System

The Endocrine System 9 The Endocrine System Yong Jeong, MD, PhD Department of Bio and Brain Engineering The Endocrine System Second controlling system of the body Nervous system is the fast-control system Uses chemical messengers

More information

8/26/13. Announcements

8/26/13. Announcements Announcements THM questions will start for points on Wednesday. Make sure you are registered correctly! Problems registering for BioPortal? Make sure you are using the link from the syllabus or FAQ. 30

More information

The Endocrine System. The Endocrine System

The Endocrine System. The Endocrine System The Endocrine System Like nervous system, endocrine system provides communication and control. Messages are relayed from one cell to another via chemical messengers (hormones). Unlike nervous system which

More information

Chapter 9 The Endocrine System and Hormone Activity

Chapter 9 The Endocrine System and Hormone Activity Chapter 9 The Endocrine System and Hormone Activity Overview Coordinates and directs the activity of cells. Interacts with the nervous system Uses chemical messengers called hormones released by organs

More information

Endocrine System. A system that consists of glands that transmit chemical messengers throughout the body.

Endocrine System. A system that consists of glands that transmit chemical messengers throughout the body. Endocrine System A system that consists of glands that transmit chemical messengers throughout the body. HORMONES: chemical that circulates throughout the blood stream and influence the activity of distant

More information

The Endocrine System Pearson Education, Inc.

The Endocrine System Pearson Education, Inc. 19 The Endocrine System Introduction The nervous system and the endocrine system work together to monitor the body s activities The nervous system: produces short-term, very specific responses The endocrine

More information

Endocrine System WHO IS IN CONTROL?

Endocrine System WHO IS IN CONTROL? Endocrine System WHO IS IN CONTROL? Objectives Explain how the endocrine and nervous system work together to regulate bodily functions Describe the basic anatomy of the endocrine system Describe the functions

More information

2/28/18. Endocrine System. 1 Copyright 2016 by Elsevier Inc. All rights reserved. Introduction. Comparing Endocrine and Nervous System Functions

2/28/18. Endocrine System. 1 Copyright 2016 by Elsevier Inc. All rights reserved. Introduction. Comparing Endocrine and Nervous System Functions Introduction Endocrine System Chapter 24 Endocrine system works with nervous system to coordinate body functions - Nervous system uses impulses and neurotransmitters - Endocrine system uses hormones Many

More information

The Endocrine System

The Endocrine System C H A P T E R 1 2 The Endocrine System OBJECTIVES After studying this chapter, you should be able to: 1. List the functions of hormones. 2. Classify hormones into their major chemical categories. 3. Describe

More information

The Endocrine System

The Endocrine System The Endocrine System What is the system? 1. Made up of glands that produce and secrete hormones (chemical messengers) 2. Regulation of growth, metabolism, sexual development 3. Responses to stress and

More information

Introduction to Human Anatomy & Physiology Chapter 35

Introduction to Human Anatomy & Physiology Chapter 35 Biology Introduction to Human Anatomy & Physiology Chapter 35 Digestion The breakdown of complex biological molecules into their component parts. Lipids to fatty acids Proteins to individual amino acids

More information

Chapter 9. The Endocrine System. Lecture Presentation by Patty Bostwick-Taylor Florence-Darlington Technical College

Chapter 9. The Endocrine System. Lecture Presentation by Patty Bostwick-Taylor Florence-Darlington Technical College Chapter 9 The Endocrine System Lecture Presentation by Patty Bostwick-Taylor Florence-Darlington Technical College Introduction Hormone and Target Cells Steroids and Non-Steroids HW: Read / Take notes

More information

9.2 Hormonal Regulation of Growth

9.2 Hormonal Regulation of Growth 9.2 Hormonal Regulation of Growth Hormonal Regulation of Growth Pituitary gland regulates growth and development Thyroid gland regulates metabolic rate (exception: some hormones for growth and development)

More information

Homeostasis. Endocrine System Nervous System

Homeostasis. Endocrine System Nervous System Homeostasis Endocrine System Nervous System 2004-2005 Regulation Why are hormones needed? chemical messages from one body part to another communication needed to coordinate whole body homeostasis & regulation

More information

Lesson 1. Nervous & Endocrine Comparison Endocrine Glands diagram Feedback Mechanisms

Lesson 1. Nervous & Endocrine Comparison Endocrine Glands diagram Feedback Mechanisms Lesson 1 Nervous & Endocrine Comparison Endocrine Glands diagram Feedback Mechanisms Nervous System Endocrine System 1. Uses neurons to transmit electrochemical messages (neurotransmitters) Regulation

More information

NOTES 11.5: ENDOCRINE SYSTEM. Pages

NOTES 11.5: ENDOCRINE SYSTEM. Pages NOTES 11.5: ENDOCRINE SYSTEM Pages 1031-1042 ENDOCRINE SYSTEM Communication system that controls metabolism, growth, and development with hormones Maintains homeostasis Hormones: chemical messengers released

More information

Human Anatomy, First Edition. Endocrine System. Chapter 20 Lecture Outline: Endocrine System. McKinley & O'Loughlin

Human Anatomy, First Edition. Endocrine System. Chapter 20 Lecture Outline: Endocrine System. McKinley & O'Loughlin Human Anatomy, First Edition McKinley & O'Loughlin Chapter 20 Lecture Outline: Endocrine System 1 Endocrine System Endocrine system and the nervous system often work together to bring about homeostasis.

More information