Animal Reproduction Chapter 46. Fission. Budding. Parthenogenesis. Fragmentation 11/27/2017

Size: px
Start display at page:

Download "Animal Reproduction Chapter 46. Fission. Budding. Parthenogenesis. Fragmentation 11/27/2017"

Transcription

1 Animal Reproduction Chapter 46 Both asexual and sexual reproduction occur in the animal kingdom Sexual reproduction is the creation of an offspring by fusion of a male gamete (sperm) and female gamete (egg) to form a zygote Asexual reproduction is creation of offspring without the fusion of egg and sperm Fission Separation of a parent into two or more individuals of about the same size Budding New individuals form from outgrowths of existing ones Fragmentation Breaking of the body into pieces, some or all of which develop into adults Parthenogenesis Development of a new individual from an unfertilized egg 1

2 Advantage of sex Reproductive cycles Sex generates variation and removes deleterious genes Asexual reproduction more favored in stable environments Ovulation is the release of mature eggs at the midpoint of a female cycle Most animals exhibit reproductive cycles related to changing seasons Reproductive cycles are controlled by hormones and environmental cues Mates can be limiting Some organisms can reproduce sexually or asexually, depending on conditions Asexual whiptail lizards are descended from a sexual species, and females still exhibit mating behaviors Two hermaphrodites can mate, and some hermaphrodites can self-fertilize Sex reversal When male dies, largest member of harem becomes male Sex reversal Oysters are male when small, and female when large 2

3 External fertilization Internal fertilization Generally more parental care with internal fertilization Ensure survival of offspring Gamete production Most species have gonads Organs that produce gametes Simple systems do not have gonads, but gametes form from undifferentiated tissue Annelids More elaborate systems include sets of accessory tubes and glands that carry, nourish, and protect gametes and developing embryos In many insects, the female has a spermatheca in which sperm is stored during copulation 3

4 Cloaca Common opening between the external environment and the digestive, excretory, and reproductive systems Found in nonmammalian vertebrates Monogamy is rare Mechanisms have evolved to decrease the chance of their mate mating with another individual Human reproduction Ovaries Each ovary contains many follicles, which consist of a partially developed egg, called an oocyte, surrounded by support cells Once a month, an oocyte develops into an ovum (egg) by the process of oogenesis Ovulation expels an egg cell from the follicle, the cells of which produce estradiol prior to ovulation Testes The male gonads consist of highly coiled tubes surrounded by connective tissue Sperm form in these seminiferous tubules Production of normal sperm cannot occur at the body temperatures of most mammals Accessory glands Semen is composed of sperm plus secretions from three sets of accessory glands The two seminal vesicles contribute about 60% of the total volume of semen The prostate gland secretes its products directly into the urethra through several small ducts The bulbourethral glands secrete a clear mucus before ejaculation that neutralizes acidic urine remaining in the urethra 4

5 Gametogenesis Spermatogenesis differs from oogenesis in three ways Gametogenesis, the production of gametes, differs in male and female, reflecting the distinct structure and function of their gametes Spermatogenesis, the development of sperm, is continuous and prolific millions of sperm are produced per day each sperm takes about 7 weeks to develop Oogenesis, the development of a mature egg, is a prolonged process Immature eggs form in the female embryo All four products of meiosis develop into sperm while only one of the four becomes an egg Spermatogenesis occurs throughout adolescence and adulthood Sperm are produced continuously without the prolonged interruptions in oogenesis Tropic and sex hormones regulate mammalian reproduction Human reproduction is coordinated by hormones from the hypothalamus, anterior pituitary, and gonads Gamete production, including sexual behavior and the development of primary and secondary sex characteristics Gonadotropin-releasing hormone (GnRH) is secreted by the hypothalamus and directs the release of FSH and LH from the anterior pituitary FSH and LH regulate processes in the gonads and the production of sex hormones 5

6 Hormonal control of the female reproductive cycles In females, the secretion of hormones and the reproductive events they regulate are cyclic Prior to ovulation, the endometrium thickens with blood vessels in preparation for embryo implantation If an embryo does not implant in the endometrium, the endometrium is shed in a process called menstruation Ovarian cycle The sequential release of GnRH then FSH and LH stimulates follicle growth Ovarian Cycle Hormones coordinate the uterine cycle with the ovarian cycle Uterine (Menstrual) Cycle 6

7 Menstrual versus estrous cycles Menstrual cycles are characteristic only of humans and some other primates The endometrium is shed from the uterus in a bleeding called menstruation Sexual receptivity is not limited to a time frame Estrous cycles are characteristic of most mammals The endometrium is reabsorbed by the uterus Sexual receptivity is limited to a heat period In placental mammals, an embryo develops fully within the mother s uterus An egg develops into an embryo in a series of predictable events Embryo implantation and gestation Twins Embryo releases human chorionic gonadotropin (hcg), which prevents menstruation Duration of species pregnancy correlates with body size and maturity of the young at birth 7

8 8

Chapter 46 ~ Animal Reproduction

Chapter 46 ~ Animal Reproduction Chapter 46 ~ Animal Reproduction Overview Asexual (one parent) fission (parent separation) budding (corals) fragmentation & regeneration (inverts) parthenogenesis Sexual (fusion of haploid gametes) gametes

More information

AP Biology Ch ANIMAL REPRODUCTION. Using only what you already know (you cannot look up anything) complete the chart below.

AP Biology Ch ANIMAL REPRODUCTION. Using only what you already know (you cannot look up anything) complete the chart below. AP Biology Ch. 46 - ANIMAL REPRODUCTION Using only what you already know (you cannot look up anything) complete the chart below. I. Overview of Animal Reproduction A. Both asexual and sexual reproduction

More information

Chapter 36 Active Reading Guide Reproduction and Development

Chapter 36 Active Reading Guide Reproduction and Development Name: AP Biology Mr. Croft Chapter 36 Active Reading Guide Reproduction and Development Section 1 1. Distinguish between sexual reproduction and asexual reproduction. 2. Which form of reproduction: a.

More information

10.7 The Reproductive Hormones

10.7 The Reproductive Hormones 10.7 The Reproductive Hormones December 10, 2013. Website survey?? QUESTION: Who is more complicated: men or women? The Female Reproductive System ovaries: produce gametes (eggs) produce estrogen (steroid

More information

Fig Chapter 46. Animal Reproduction

Fig Chapter 46. Animal Reproduction Fig. 46-1 Chapter 46 Animal Reproduction Overview: Pairing Up for Sexual Reproduction Each earthworm produces sperm and eggs; Aspects of animal form and function can be viewed broadly as adaptations contributing

More information

Male Reproduction Organs. 1. Testes 2. Epididymis 3. Vas deferens 4. Urethra 5. Penis 6. Prostate 7. Seminal vesicles 8. Bulbourethral glands

Male Reproduction Organs. 1. Testes 2. Epididymis 3. Vas deferens 4. Urethra 5. Penis 6. Prostate 7. Seminal vesicles 8. Bulbourethral glands Outline Terminology Human Reproduction Biol 105 Lecture Packet 21 Chapter 17 I. Male Reproduction A. Reproductive organs B. Sperm development II. Female Reproduction A. Reproductive organs B. Egg development

More information

The beginning of puberty is marked by the progressive increase in the production of sex hormones.

The beginning of puberty is marked by the progressive increase in the production of sex hormones. Puberty is characterized by the changes that prepare the human body for the ability to reproduce. This stage generally occurs between the ages of 10 and 14 years old. The beginning of puberty is marked

More information

Animal Reproductive Systems. Chapter 42

Animal Reproductive Systems. Chapter 42 Animal Reproductive Systems Chapter 42 Impacts, Issues Male or Female? Body or Genes? Body and genes don t always match male or female characteristics also depend on hormones mutations can result in intersex

More information

BIOLOGY. Animal Reproduction CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson. Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick

BIOLOGY. Animal Reproduction CAMPBELL. Reece Urry Cain Wasserman Minorsky Jackson. Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick CAMPBELL BIOLOGY TENTH EDITION Reece Urry Cain Wasserman Minorsky Jackson 46 Animal Reproduction Lecture Presentation by Nicole Tunbridge and Kathleen Fitzpatrick 1. Asexual vs Sexual Reproduction Both

More information

Animal Reproduc5on. Chapter 46. Asexual and Sexual Reproduc5on. Asexual and Sexual Reproduc5on. Sexual reproduc-on

Animal Reproduc5on. Chapter 46. Asexual and Sexual Reproduc5on. Asexual and Sexual Reproduc5on. Sexual reproduc-on Chapter 46 Animal Reproduc5on BIOL 223 Sexual reproduc-on Asexual and Sexual Reproduc5on crea5on of an offspring by fusion of a male gamete (sperm) and female gamete (egg) to form a zygote Asexual reproduc-on

More information

Chapter 14 Reproduction Review Assignment

Chapter 14 Reproduction Review Assignment Date: Mark: _/45 Chapter 14 Reproduction Review Assignment Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Use the diagram above to answer the next question.

More information

Chapter 14 The Reproductive System

Chapter 14 The Reproductive System Biology 12 Name: Reproductive System Per: Date: Chapter 14 The Reproductive System Complete using BC Biology 12, page 436-467 14. 1 Male Reproductive System pages 440-443 1. Distinguish between gametes

More information

Chapter 22 The Reproductive System (I)

Chapter 22 The Reproductive System (I) Chapter 22 The Reproductive System (I) An Overview of Reproductive Physiology o The Male Reproductive System o The Female Reproductive System 22.1 Reproductive System Overview Reproductive system = all

More information

Testes (male gonads) -Produce sperm -Produce sex hormones -Found in a sac called the scrotum -Suspended outside of the body cavity for temperature

Testes (male gonads) -Produce sperm -Produce sex hormones -Found in a sac called the scrotum -Suspended outside of the body cavity for temperature REPRODUCTION Testes (male gonads) -Produce sperm -Produce sex hormones -Found in a sac called the scrotum -Suspended outside of the body cavity for temperature reduction -Testes wall made of fibrous connective

More information

Female Reproductive System. Lesson 10

Female Reproductive System. Lesson 10 Female Reproductive System Lesson 10 Learning Goals 1. What are the five hormones involved in the female reproductive system? 2. Understand the four phases of the menstrual cycle. Human Reproductive System

More information

1. Both asexual and sexual reproduction occur in the animal kingdom

1. Both asexual and sexual reproduction occur in the animal kingdom 1. Both asexual and sexual reproduction occur in the animal kingdom Asexual reproduction involves the formation of individuals whose genes all come from one parent. There is no fusion of sperm and egg.

More information

Reproductive Hormones

Reproductive Hormones Reproductive Hormones Male gonads: testes produce male sex cells! sperm Female gonads: ovaries produce female sex cells! ovum The union of male and female sex cells during fertilization produces a zygote

More information

Study Guide Answer Key Reproductive System

Study Guide Answer Key Reproductive System Biology 12 Human Biology Textbook: BC Biology 12 Study Guide Answer Key Reproductive System 1. Distinguish between a gamete and a gonad using specific examples from the male and female systems. Gonads

More information

Sample Provincial exam Q s: Reproduction

Sample Provincial exam Q s: Reproduction Sample Provincial exam Q s: Reproduction 11. Functions Testosterone Makes the male sex organs function normally, and also inhibits hypothalamus s release of GnRH and thus LH & FSH and thus testosterone

More information

Human Reproductive Anatomy The female anatomy first just the reproductive parts:

Human Reproductive Anatomy The female anatomy first just the reproductive parts: Human Reproduction: Structures, Functions, and Hormones Human reproduction differs from the mechanisms in lower vertebrates and many invertebrates. We depend on internal fertilization sperm are deposited

More information

Outline. Male Reproductive System Testes and Sperm Hormonal Regulation

Outline. Male Reproductive System Testes and Sperm Hormonal Regulation Outline Male Reproductive System Testes and Sperm Hormonal Regulation Female Reproductive System Genital Tract Hormonal Levels Uterine Cycle Fertilization and Pregnancy Control of Reproduction Infertility

More information

Unit 15 ~ Learning Guide

Unit 15 ~ Learning Guide Unit 15 ~ Learning Guide Name: INSTRUCTIONS Complete the following notes and questions as you work through the related lessons. You are required to have this package completed BEFORE you write your unit

More information

9.4 Regulating the Reproductive System

9.4 Regulating the Reproductive System 9.4 Regulating the Reproductive System The Reproductive System to unite a single reproductive cell from a female with a single reproductive cell from a male Both male and female reproductive systems include

More information

to ensure the. Sexual reproduction requires the (from the mother) by a (from the father). Fertilization is the fusion of.

to ensure the. Sexual reproduction requires the (from the mother) by a (from the father). Fertilization is the fusion of. The Reproductive System Fill-In Notes Purpose of life: to ensure the. Stages of Human Development Sexual reproduction requires the (from the mother) by a (from the father). Fertilization is the fusion

More information

Human Reproductive System

Human Reproductive System Human Reproductive System I. The male reproductive anatomy is a delivery system for sperm. A. The male s external reproductive organs consist of the scrotum and penis. 1. The penis is the external organ

More information

Chapter 28: REPRODUCTIVE SYSTEM: MALE

Chapter 28: REPRODUCTIVE SYSTEM: MALE Chapter 28: REPRODUCTIVE SYSTEM: MALE I. FUNCTIONAL ANATOMY (Fig. 28.1) A. Testes: glands which produce male gametes, as well as glands producing testosterone 2. Seminiferous tubules (Fig.28.3; 28.5) a.

More information

Reproductive System. Testes. Accessory reproductive organs. gametogenesis hormones. Reproductive tract & Glands

Reproductive System. Testes. Accessory reproductive organs. gametogenesis hormones. Reproductive tract & Glands Reproductive System Testes gametogenesis hormones Accessory reproductive organs Reproductive tract & Glands transport gametes provide nourishment for gametes Hormonal regulation in men Hypothalamus - puberty

More information

Functions of male Reproductive System: produce gametes deliver gametes protect and support gametes

Functions of male Reproductive System: produce gametes deliver gametes protect and support gametes Functions of male Reproductive System: produce gametes deliver gametes protect and support gametes Spermatogenesis occurs in the testes after puberty. From the testes they are deposited into the epididymas

More information

Endocrine and Reproductive Systems. Chapter 39: Biology II

Endocrine and Reproductive Systems. Chapter 39: Biology II Endocrine and Reproductive Systems Chapter 39: Biology II The Endocrine System Made up of glands that release their products into the bloodstream These products broadcast messages throughout the body Chemicals

More information

Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems

Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems CH. 15 - REPRODUCTIVE SYSTEM Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems 3. Male Reproductive anatomy and physiology. Testes = paired

More information

Human Reproductive System

Human Reproductive System Human Reproductive System I. The male reproductive anatomy is a delivery system for sperm. A. The male=s external reproductive organs consist of the scrotum and penis. 1. The penis is the external organ

More information

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.

MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Which of the following hormones controls the release of anterior pituitary gonadotropins? A) LH

More information

Reproductive Systems. BIOLOGY OF HUMANS Concepts, Applications, and Issues. Judith Goodenough Betty McGuire

Reproductive Systems. BIOLOGY OF HUMANS Concepts, Applications, and Issues. Judith Goodenough Betty McGuire BIOLOGY OF HUMANS Concepts, Applications, and Issues Fifth Edition Judith Goodenough Betty McGuire 17 Reproductive Systems Lecture Presentation Anne Gasc Hawaii Pacific University and University of Hawaii

More information

a. the tail disappears b. they become spermatids c. they undergo capacitation d. they have been stored in the uterus for several days

a. the tail disappears b. they become spermatids c. they undergo capacitation d. they have been stored in the uterus for several days (2 points each) Multiple Choice. Read each question thoroughly before answering. From the choices available, choose the answer that is the most correct. Place all answers on the accompanying answer sheet.

More information

Web Activity: Simulation Structures of the Female Reproductive System

Web Activity: Simulation Structures of the Female Reproductive System differentiate. The epididymis is a coiled tube found along the outer edge of the testis where the sperm mature. 3. Testosterone is a male sex hormone produced in the interstitial cells of the testes. It

More information

Student Academic Learning Services Page 1 of 5 Reproductive System Practice

Student Academic Learning Services Page 1 of 5 Reproductive System Practice Student Academic Learning Services Page 1 of 5 Reproductive System Practice Fill in the blanks using the words listed: accessory glands, vas deferens, penis, scrotum, fallopian tube, testes, urethra, vagina,

More information

Bio 12- Ch. 21: Reproductive System

Bio 12- Ch. 21: Reproductive System Bio 12- Ch. 21: Reproductive System 21.1- Male Reproductive System o Male anatomy o Testes and how they relate to sperm production and male sex hormones o Hormone regulation in males 21.2- Female Reproductive

More information

- production of two types of gametes -- fused at fertilization to form zygote

- production of two types of gametes -- fused at fertilization to form zygote Male reproductive system I. Sexual reproduction -- overview - production of two types of gametes -- fused at fertilization to form zygote - promotes genetic variety among members of a species -- each offspring

More information

What are the main functions of the male reproductive system? 1. Produce sperm 2. Deposit sperm into the female 3. Provide a pathway for the removal

What are the main functions of the male reproductive system? 1. Produce sperm 2. Deposit sperm into the female 3. Provide a pathway for the removal What are the main functions of the male reproductive system? 1. Produce sperm 2. Deposit sperm into the female 3. Provide a pathway for the removal of urine Where is sperm produced? -In the 2 testes What

More information

Ch 20: Reproduction. Keypoints: Human Chromosomes Gametogenesis Fertilization Early development Parturition

Ch 20: Reproduction. Keypoints: Human Chromosomes Gametogenesis Fertilization Early development Parturition Ch 20: Reproduction Keypoints: Human Chromosomes Gametogenesis Fertilization Early development Parturition SLOs Contrast mitosis/meiosis, haploid/diploid, autosomes/sex chromosomes. Outline the hormonal

More information

REPRODUCCIÓN. La idea fija. Copyright 2004 Pearson Education, Inc., publishing as Benjamin Cummings

REPRODUCCIÓN. La idea fija. Copyright 2004 Pearson Education, Inc., publishing as Benjamin Cummings REPRODUCCIÓN La idea fija How male and female reproductive systems differentiate The reproductive organs and how they work How gametes are produced and fertilized Pregnancy, stages of development, birth

More information

Grade 9 Science - Human Reproduction

Grade 9 Science - Human Reproduction Grade 9 Science - Human Reproduction The human reproductive system is a series of organs that work together for one purpose: reproduction (creating new humans). Each part has a specific role in the reproductive

More information

Sperm production. Sperm production. Meiosis. Mitosis. The cells of Leydig in testes secrete

Sperm production. Sperm production. Meiosis. Mitosis. The cells of Leydig in testes secrete Sperm production Ductus deferens Epididymis The cells of Leydig in testes secrete Seminiferous testosterone (T) tubules T secreted at puberty produces 2 o sex characteristics, spermatogenesis, & maintain

More information

Sperm production. Sperm production. Controlling sperm production. Meiosis. Mitosis. The cells of Leydig in testes secrete

Sperm production. Sperm production. Controlling sperm production. Meiosis. Mitosis. The cells of Leydig in testes secrete Ductus deferens Sperm production Epididymis The cells of Leydig in testes secrete Seminiferous testosterone (T) tubules T secreted at puberty produces 2 o sex characteristics, spermatogenesis, & maintain

More information

Reproductive Endocrinology. Isabel Hwang Department of Physiology Faculty of Medicine University of Hong Kong Hong Kong May2007

Reproductive Endocrinology. Isabel Hwang Department of Physiology Faculty of Medicine University of Hong Kong Hong Kong May2007 Reproductive Endocrinology Isabel Hwang Department of Physiology Faculty of Medicine University of Hong Kong Hong Kong May2007 isabelss@hkucc.hku.hk A 3-hormone chain of command controls reproduction with

More information

Female and Male Reproductive Systems

Female and Male Reproductive Systems Female and Male Reproductive Systems Reproductive System: Organs that make possible the production of offspring. Female Reproductive System Female Reproductive System: Words to be familiar with ESTROGEN

More information

Animal Reproductive Systems. Chapter 42

Animal Reproductive Systems. Chapter 42 Animal Reproductive Systems Chapter 42 Impacts, Issues Male or Female? Body or Genes? Body and genes don t always match male or female characteristics also depend on hormones mutations can result in intersex

More information

LIFE SCIENCES Grade 12 REPRODUCTION 30 JUNE 2014

LIFE SCIENCES Grade 12 REPRODUCTION 30 JUNE 2014 REPRODUCTION 30 JUNE 2014 Checklist Make sure you Can describe different reproductive strategies of vertebrates Are able to identify the structure and function of the male and female reproductive organs

More information

REPRODUCTION The diagram below shows a section through seminiferous tubules in a testis.

REPRODUCTION The diagram below shows a section through seminiferous tubules in a testis. 1. The diagram below shows a section through seminiferous tubules in a testis. Which cell produces testosterone? 2. A function of the interstitial cells in the testes is to produce A sperm B testosterone

More information

6.7 IN. Continuity through Reproduction. What are the differences between male and female gametes? Discuss their formation and physical attributes.

6.7 IN. Continuity through Reproduction. What are the differences between male and female gametes? Discuss their formation and physical attributes. 6.7 IN What are the differences between male and female gametes? Discuss their formation and physical attributes. Males - 4 sperm per parent cell; Females - 1 ovum per parent cell Sperm - motile (tail);

More information

SISTEMA REPRODUCTOR (LA IDEA FIJA) Copyright 2004 Pearson Education, Inc., publishing as Benjamin Cummings

SISTEMA REPRODUCTOR (LA IDEA FIJA) Copyright 2004 Pearson Education, Inc., publishing as Benjamin Cummings SISTEMA REPRODUCTOR (LA IDEA FIJA) How male and female reproductive systems differentiate The reproductive organs and how they work How gametes are produced and fertilized Pregnancy, stages of development,

More information

The Male Reproductive System

The Male Reproductive System The Male Reproductive System Male Reproductive System The male sex cell is a sperm cell The whole purpose is to produce and deliver sperm to the egg Structure of a Human Sperm Cell Streamlined, built to

More information

Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems

Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems CH. 15 - REPRODUCTIVE SYSTEM Objectives: 1. Review male & female reproductive anatomy 2. Gametogenesis & steroidogenesis 3. Reproductive problems Review of Male Reproductive Anatomy Fig 15.9 Vas deferens

More information

Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring

Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring HUMAN REPRODUCTION Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring Asexual vs Sexual Reproduction Remember: Asexual reproduction:

More information

Unit 4 - Reproduction

Unit 4 - Reproduction Living Environment Practice Exam- Parts A and B-1 1. Which cell process occurs only in organisms that reproduce sexually? A) mutation B) replication C) meiosis D) mitosis 2. Which sequence represents the

More information

Reproductive System:

Reproductive System: Reproductive System: Purpose: The reproductive system combines genetic information from both parents (in most animals) to produce new life forms. This system produces sex cells (gametes), delivers them,

More information

MULTIPLE CHOICE: match the term(s) or description with the appropriate letter of the structure.

MULTIPLE CHOICE: match the term(s) or description with the appropriate letter of the structure. Chapter 27 Exam Due NLT Thursday, July 31, 2015 Name MULTIPLE CHOICE: match the term(s) or description with the appropriate letter of the structure. Figure 27.1 Using Figure 27.1, match the following:

More information

Male Reproductive System

Male Reproductive System 21-1 21-2 Reproductive System Male Reproductive System Genital Tract In males the testes, held outside the body in the scrotum (optimum temp of about 35 0 C), produce sperm. Sperm mature in coiled tubes

More information

Physiology of Male Reproductive System

Physiology of Male Reproductive System Physiology of Male Reproductive System the anterior pituitary gland serves as the primary control of reproductive function at puberty Ant Pituitary secretes FSH & large amounts of LH (ICSH) FSH & LH cause

More information

Urinary System Chapter 16

Urinary System Chapter 16 Urinary System Chapter 16 1 Urology- the branch of medicine that treats male and female urinary systems as well as the male reproductive system. Nephrology- the scientific study of the anatomy, physiology,

More information

Reproduction Worksheet

Reproduction Worksheet Name: Date: Reproduction Worksheet Directions: Base your answers to questions 1-4 on the diagram below and your knowledge of biology. 1. Identify the structure in which sperm is produced. What is the name

More information

1. Be able to characterize the menstrual cycle from the perspective of the ovary a. Follicular phase b. Luteal phase

1. Be able to characterize the menstrual cycle from the perspective of the ovary a. Follicular phase b. Luteal phase Human Sexuality Exam II Review Material Gametogenesis: Oogenesis 1. Be able to characterize the menstrual cycle from the perspective of the ovary a. Follicular phase b. Luteal phase 2. Know the relative

More information

Reproductive system Presented by: Ms. Priya

Reproductive system Presented by: Ms. Priya Reproductive system Presented by: Ms. Priya Reproductive system Female reproductive system has two functions: produce egg cells to protect and nourish the offspring (baby) until birth. Male reproductive

More information

1. During the follicular phase of the ovarian cycle, the hypothalamus releases GnRH.

1. During the follicular phase of the ovarian cycle, the hypothalamus releases GnRH. 1. During the follicular phase of the ovarian cycle, the hypothalamus releases GnRH. 2. This causes the anterior pituitary to secrete small quantities of FSH and LH. 3. At this time, the follicles in the

More information

Endocrine System Hormones & Homeostasis. Regents Biology

Endocrine System Hormones & Homeostasis. Regents Biology Endocrine System Hormones & Homeostasis 2009-2010 Homeostasis Homeostasis maintaining internal balance in the body organism must keep internal conditions stable even if environment changes also called

More information

The Reproductive System

The Reproductive System C h a p t e r 27 The Reproductive System PowerPoint Lecture Slides prepared by Jason LaPres North Harris College Houston, Texas Copyright 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings

More information

Investigation: The Human Menstrual Cycle Research Question: How do hormones control the menstrual cycle?

Investigation: The Human Menstrual Cycle Research Question: How do hormones control the menstrual cycle? Investigation: The Human Menstrual Cycle Research Question: How do hormones control the menstrual cycle? Introduction: The menstrual cycle (changes within the uterus) is an approximately 28-day cycle that

More information

Male Reproductive Structures I. Overview A. Main functions: 1. Produce a haploid male gamete (sperm) 2. Deposit sperm in the female so fertilization

Male Reproductive Structures I. Overview A. Main functions: 1. Produce a haploid male gamete (sperm) 2. Deposit sperm in the female so fertilization Male Reproductive Structures I. Overview A. Main functions: 1. Produce a haploid male gamete (sperm) 2. Deposit sperm in the female so fertilization may occur! A. Scrotum 1. Muscular pouch that holds the

More information

Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring

Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring Quiz: Evolution Human Reproduction Why Reproduce? In order to ensure the continuation of the species and the continuation of life in general by producing offspring Asexual vs Sexual Reproduction Remember:

More information

Contact us:

Contact us: Class X Chapter 8 How do Organisms Reproduce Science Question 1: What is the importance of DNA copying in reproduction? DNA (Deoxyribonucleic acid) is the genetic material found in the chromosomes, which

More information

Human Reproduction. Human Reproductive System. Scrotum. Male Reproductive System

Human Reproduction. Human Reproductive System. Scrotum. Male Reproductive System Human Reproductive System Human Reproduction Chapter 41 Contraceptives Scrotum Testes Epididymus Vas Deferens Seminal Vesicles Prostate Gland Bulbourethral Gland Penis Scrotum Sac of smooth muscle tissue

More information

Female reproductive cycle: A Comprehensive Review Rachel Ledden Paper for Bachelors in Science January 20, 2018

Female reproductive cycle: A Comprehensive Review Rachel Ledden Paper for Bachelors in Science January 20, 2018 Running head: 1 Female reproductive cycle: A Comprehensive Review Rachel Ledden Paper for Bachelors in Science January 20, 2018 Female reproductive cycle: A Comprehensive Review 2 The reproductive cycle

More information

DEPARTMENT OF BIOLOGY, HPS (B) X CLASS Key:Reproductive system, Endocrine system and Population

DEPARTMENT OF BIOLOGY, HPS (B) X CLASS Key:Reproductive system, Endocrine system and Population DEPARTMENT OF BIOLOGY, HPS (B) X CLASS Key:Reproductive system, Endocrine system and Population Question I. Name of the following: 1. The part of the female reproductive system in which fertilization takes

More information

Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor)

Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor) Indifferent ducts of embryo Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor) Y chromosome present Y chromosome absent Phenotypic sex is depends on development of external

More information

Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor)

Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor) Indifferent ducts of embryo Y chromosome present Y chromosome absent Male Female penis ovary uterus vagina testis Biology of gender Sex chromosomes determine gonadal sex (testis-determining factor) Phenotypic

More information

Embryology Lecture # 4

Embryology Lecture # 4 1 Quick Review: Oogenesis : - Oogonia start appear in the ovary when the age of the fetus 1 is th (5 week). - Then the Oogonia transformed into 1ry Oocyte. - 1ry Oocyte is surrounded by a follicle (cover).

More information

Special Parts: Gender. Why Have Sex?

Special Parts: Gender. Why Have Sex? Why Have Sex? Lots of animals clone themselves... 100% of their genes are passed on! Sex requires sharing, it s expensive (time, mate selection, special parts, prenuptial gifts...) So why do it? Special

More information

Physiology Unit 4 REPRODUCTIVE PHSYIOLOGY

Physiology Unit 4 REPRODUCTIVE PHSYIOLOGY Physiology Unit 4 REPRODUCTIVE PHSYIOLOGY Gonads Gonads have 2 func7ons Gametogenesis Spermatogenesis Oogenesis Secrete steroid hormones Testosterone Estrogens (3 forms) Estradiol, produced by ovaries,

More information

Reproduction and Development. Female Reproductive System

Reproduction and Development. Female Reproductive System Reproduction and Development Female Reproductive System Outcomes 5. Identify the structures in the human female reproductive system and describe their functions. Ovaries, Fallopian tubes, Uterus, Endometrium,

More information

Meiosis & Sexual Reproduction. AP Biology

Meiosis & Sexual Reproduction. AP Biology Meiosis & Sexual Reproduction 2007-2008 Cell division / Asexual reproduction Mitosis produce cells with same information identical daughter cells exact copies clones same amount of DNA same number of chromosomes

More information

The Reproductive System

The Reproductive System The Reproductive System The Reproductive System Gonads primary sex organs Testes in males Ovaries in females Gonads produce gametes (sex cells) and secrete hormones Sperm male gametes Ova (eggs) female

More information

Reproduction Lecture Spring 2009

Reproduction Lecture Spring 2009 Reproduction Lecture Spring 2009 Slide #2: The term gonads refer to the sex organs. In the male, these are the testes, and the in the female, the ovary. The produce sex cells, or gametes. The male gamete

More information

HORMONES & REPRODUCTION OUTLINE

HORMONES & REPRODUCTION OUTLINE 1 HORMONES & REPRODUCTION Dr. Steinmetz OUTLINE 2 The Endocrine System Sexual Reproduction Hormonal Role in Sexual Differentiation Gender Differences and Gender Identity Characterizing Complex Behaviors

More information

Unit 6 REPRODUCTIVE SYSTEM Reproductive System Test Bank

Unit 6 REPRODUCTIVE SYSTEM Reproductive System Test Bank Unit 6 REPRODUCTIVE SYSTEM Reproductive System Test Bank Objective 6.01 Describe the basic functions of the reproductive system. 1. Which of the following is a function of the reproductive system? a. Production

More information

Health Science: the structures & functions of the reproductive system

Health Science: the structures & functions of the reproductive system Health Science: the structures & functions of the reproductive BELLWORK 1. List (4) careers that are r/t the Reproductive, Urinary, and Endocrine Systems 2. Copy down the following terms: -ologist = one

More information

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Exam Name SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Figure 27.3 Using Figure 27.3, match the following: 1) The stage called ovulation. 2) Corpus

More information

Male Reproductive System

Male Reproductive System Male Reproductive System The male reproductive system consists of a number of sex organs that are part of the reproductive process. The following sections describe the function of each part of the male

More information

DATE: NAME: CLASS: Chapter 14 Test

DATE: NAME: CLASS: Chapter 14 Test Multiple Choice Questions Decide which of the choices best completes the statement or answers the question. Locate that question number on the separate answer sheet provided. Use the procedure described

More information

Reproduction Notes. iii. LH stimulates the interstitial cells of testes to produce testosterone c. testes

Reproduction Notes. iii. LH stimulates the interstitial cells of testes to produce testosterone c. testes I. Asexual Reproduction a a single parent endows its offspring with a set of genes identical to its own (except for mutations) A. Forms 1. Budding a. a part of the parent's body grows and separates from

More information

Phases of the Ovarian Cycle

Phases of the Ovarian Cycle OVARIAN CYCLE An ovary contains many follicles, and each one contains an immature egg called an oocyte. A female is born with as many as 2 million follicles, but the number is reduced to 300,000 to 400,000

More information

REPRODUCTION & GENETICS. Hormones

REPRODUCTION & GENETICS. Hormones REPRODUCTION & GENETICS Hormones http://www.youtube.com/watch?v=np0wfu_mgzo Objectives 2 Define what hormones are; Compare and contrast the male and female hormones; Explain what each hormone in the mail

More information

Unit 2 Physiology and Health Part (a) The Reproductive System HOMEWORK BOOKLET

Unit 2 Physiology and Health Part (a) The Reproductive System HOMEWORK BOOKLET Unit 2 Physiology and Health Part (a) The Reproductive System HOMEWORK BOOKLET Name: Homework Date Due Mark % Key Area 1 The structure and function of reproductive organs Key Area 2 Hormonal control of

More information

Study Guide. Biology 3101B. Science. Reproduction and Development. Adult Basic Education. Biology 2101A Biology 2101C Biology 3101A.

Study Guide. Biology 3101B. Science. Reproduction and Development. Adult Basic Education. Biology 2101A Biology 2101C Biology 3101A. Adult Basic Education Science Reproduction and Development Prerequisites: Biology 2101A Biology 2101C Biology 3101A Credit Value: 1 Text: Biology. Bullard, Chetty, et al; McGraw-Hill Ryerson, 2003 Biology

More information

Chapter 8: How do Organisms Reproduce? 1 What is the primary importance of DNA copying in reproduction? SOLUTION:

Chapter 8: How do Organisms Reproduce? 1 What is the primary importance of DNA copying in reproduction? SOLUTION: Chapter 8: How do Organisms Reproduce? 1 What is the primary importance of DNA copying in reproduction? DNA copying in reproduction is important for maintenance of body designs and features. It is also

More information

Downloaded from Organisms Reproduce

Downloaded from   Organisms Reproduce Organisms Reproduce Question 1: What is the importance of DNA copying in reproduction? Answer: DNA (Deoxyribonucleic acid) is the genetic material found in the chromosomes, which are present in the nucleus

More information

The Reproductive System

The Reproductive System PowerPoint Lecture Slide Presentation by Patty Bostwick-Taylor, Florence-Darlington Technical College The Reproductive System 16PART A The Reproductive System Gonads primary sex organs Testes in males

More information

Bio 3201 Unit 2 REPRODUCTION AND DEVELOPMENT. Cell Division MITOSIS (P )

Bio 3201 Unit 2 REPRODUCTION AND DEVELOPMENT. Cell Division MITOSIS (P ) Bio 3201 Unit 2 REPRODUCTION AND DEVELOPMENT 31 Hours Cell Division MITOSIS (P. 460-469) 1. Describe mitosis in detail; Specifically describe, in detail, the events of interphase, mitosis and cytokinesis

More information

The Reproductive System

The Reproductive System Essentials of Anatomy & Physiology, 4th Edition Martini / Bartholomew The Reproductive System PowerPoint Lecture Outlines prepared by Alan Magid, Duke University Slides 1 to 84 Overview of Reproduction

More information

Chapter 22 Reproductive Systems. Male Reproductive Organs. Male Reproductive Organs. Specialized to produce, maintain the male sex cells (sperm)

Chapter 22 Reproductive Systems. Male Reproductive Organs. Male Reproductive Organs. Specialized to produce, maintain the male sex cells (sperm) Chapter 22 Reproductive Systems Male reproductive organs 1 Male Reproductive Organs posterior view 2 Male Reproductive Organs Specialized to produce, maintain the male sex cells (sperm) Transport these

More information

The reproductive system

The reproductive system The reproductive system Reproduction All living organisms reproduce. Reproduction is the process by which organisms generate new individuals of the same kind ensuring continuation of the species. There

More information