The Endocrine System Pituitary
|
|
- Merilyn Simpson
- 6 years ago
- Views:
Transcription
1 The Endocrine System Pituitary Look at your slide of the human pituitary with your naked eye. You should see a cellular region and a more fibrous region. Then view each region with your microscope under low power. The above photograph shows a cat pituitary. The cellular region to the left is the pars distalis. The fibrous region to the right is the pars nervosa. In the cat, there is a more distinct "pars intermedia", which is seen at the upper left edge of the pars nervosa. What is the embryologic origin of the pars distalis? What is the embryologic origin of the pars intermedia? What is the embryologic origin of the pars nervosa? Would you expect to see a distinct pars intermedia in your slide of the human pituitary?
2 This is a higher magnification of a region through the human pituitary showing the pars nervosa and the pars distalis. What is the name of the cleft that remains and separates the two regions? Trace the blood supply to the pars distalis. Why is this an advantage for its function?
3 The above photos show higher magnifications of the pars distalis. You should be able to distinguish acidophils and basophils in this and your slide. To do this, look at the color of the red blood cells in the vessels (V). Then, match the color to cells in the pituitary. Those are the acidophils (A). Cells that are more "purple", or blue are the basophils (B). Cells that have hardly any color are the chromophobes. There are few true chromophobes since at the electron microscopic level most pituitary cells have the granules that are characteristic of a particular cell type. They are simply degranulated acidophils or basophils. If you saw a pituitary with a large mass of acidophils (adenoma), what hormones might be produced by this tumor?? In hypothyroid individuals, certain types of basophils enlarge and become vacuolated. What is causing this response? Which basophils are responding? What is the probable function of most chromophobes?
4 The above photos show views of the pars nervosa. This region consists of a mass of nerve fibers and endings from a fiber tract that extends down from the hypothalamus. The hormones are stored in the nerve endings which can be quite large (called Herring bodies). Your slide does not have good examples of Herring bodies. The fibers are supported by glial cells, called pituicytes. In the above photos, you can see scattered nuclei of pituicytes as well as the fine capillaries lined by endothelial cells. Name the two hormones secreted by the pars nervosa? Where are these pars nervosa hormones produced? Trace the blood supply to this region. Return to top of page
5 Thyroid The above photo shows a low magnification of the thyroid gland. It is distinctive, however note that you will have to work to distinguish it from lactating mammary gland (review your past notes). The gland is organized into sacs, called follicles. Each sac is lined by simple cuboidal, or sometimes columnar epithelium. Each sac contains colloid. The cells are classical examples of polarized epithelial cells with their base near a blood vessel and their apex facing the colloid. In this photo and your slide you can see the small capillaries defining the space between the sacs or follicles. (They stand out because of the red blood cells). What is colloid and why is it significant? What hormone stimulates this gland and how does it get to the thyroid?
6 This is a higher magnification of a region through thyroid follicles. You can see the cuboidal epithelial cells along with the colloid. Why do vacuoles in the colloid and the cells themselves increase in size when the cells are stimulated? There are cells that are found outside the follicular cells, in the spaces near the blood vessels. These are called "parafollicular cells" or C-Cells and they can't be idenfied by routine light microscopy. However, one can use immunocytochemistry to identify them by their product. What antibody would you use to identify parafollicular cells? Parathyroid
7 The parathyroid gland is distinguished by scattered clumps of adipose cells (seen in the above photograph) lying among the parenchymal cells. You can see this relationship in your slide of the parathyroid gland. There are two types of parenchymal cells: chief cells and oxyphil cells. Use the next photo and the description as a guide and find examples of each type. Parathyroid hormone secretion is stimulated by a signal from the blood stream. What is this signal? Where does parathyroid hormone act? The attached photos show higher magnifications of the parathyroid gland. The oxyphil cells are distinguished in most of your slides by the fact that they have a dark, round central nucleus and a homogeneous red cytoplasm. They often occur in "nests" or clusters. Chief cells are paler and may have areas of blue staining which reflects their content of rough endoplasmic reticulum as well as storage granules. If you looked at an electron micrograph of an oxyphil cell, which organelle would be very abundant?
8 Looking at Chief cells and oxyphil cells, which do you think would likely produce parathyroid hormone? The Adrenal Gland The top photo shows a low magnification of the adrenal gland. Find this slide in your slide set. It is stained with a trichrome stain to bring out the connective tissue (blue) capsule. The top photo shows the three regions of the cortex. The outer region near the capsule has cells arranged in clusters, like grapes. This is called the Zona Glomerulosa.
9 The middle region has cells arranged in straight cords. It is called Zona Fasciculata.(think fasicle or straight). The innermost region has cells arranged in a branching network. This is called the Zona reticularis. Higher magnifications are seen in the middle and bottom photo. Which zones are shown in the middle photo? (label the photo). Which zones are shown in the bottom photo? (label each). What is the principle hormone produced by each of these zones? What is the function of each of the hormones? A higher magnification of the zona glomerulosa and the Zona fasciculata is shown in this photo. Note the many droplets seen in the zona fasciculata cells. What type of hormone is secreted by these cells? (basic chemistry). Look at an electron micrograph of a adrenal cortex cell. What organelles are involved in the synthesis of the hormones?
10 These photos show the zona reticularis (region to the right) adjacent to the adrenal medulla. Note that the medullary cells are organized in clusters and the region continues to be highly vascularized. What hormone (s) are produced by the adrenal medulla? How are the medullary cells controlled? Describe the blood flow to the medulla. Why is this important for the function of the medullary cells? The Pineal
11 Find your slide of a pineal from an aging human. The most distinctive feature of this gland is the presence of "corpora arenacea" or "brain sand" in the aging pineal. In fact, it will help you identify this as the pineal. It is shown in the above photos as a large bluepurple mass in the tissue. The pineal is responsive to environmental cues? What are they? What hormone is produced when the pineal is stimulated?
12 How is the pineal involved in our response to jet-lag? This higher magnification shows the pinealocytes which are distinguished by their pale, round nuclei. You may also see small dense nuclei belonging to glial cells. The pineal is also well vascularized, which is typical of an endocrine organ. Your slide of the young pineal may have some part of the brain attached. Try to find the region that is highly cellular (see above photos). Pinealocytes, with their pale nuclei can be seen along with a few glial cells. Capillaries are also evident. Look at your slide and
13 find both cell types. The Endocrine Pancreas Look at your slide of the pancreas. Find fields showing both acinar exocrine cells and patches of islet cells. These patches are called the Islets of Langerhans. They are the endocrine cells in the pancreas. Two major cell types include the alpha cell (reddish, producing glucagon) and the beta cell (bluish, producing insulin). They may be easier to see in your slides, at higher magnification. What signal from the blood stream stimulates secretion from the beta cell?. What does it secrete? What signal stimulates secretion from the alpha cell? What is the function of glucagon?
14 The above higher magnification shows a small islet surrounded by clusters of exocrine cells. You can see the purple and blue cells in the islet better. What other hormone producing cells are found in the islet? Look at the base of the exocrine cells (acinar cells) in your slides. Note the deep purple color which contrasts with the reddish granulated color near the apex. Also, find the center of the acinus which is the lumen. What organelles contribute to the deep purple/blue color at the base of these polarized cells? What structures contribute to the reddish color in the apex of the cells?
PRACTICAL ROADMAP. GLANDS AFFECTING LIFESTYLE WJ van der Spuy & T Tshabalala
PRACTICAL ROADMAP GLANDS AFFECTING LIFESTYLE WJ van der Spuy & T Tshabalala GLANDS AFFECTING LIFESTYLE Submandibular gland (salivary gland) Liver Pancreas Hypophysis (pituitary gland) Thyroid Suprarenal
More informationSlide 74: Pituitary (Masson s trichrome)
histo074 Slide 74: Pituitary (Masson s trichrome) Infundibular stalk Pars tuberlaris Carcinoma Pars nervosa Pars intermedia Pars distalis Pars distalis Pars intermedia Pars nervosa Pars Pars intermedia
More informationExocrine vs. Endocrine Glands. Dr. Sami Zaqout IUG
Exocrine vs. Endocrine Glands Hypophysis (Pituitary Gland) It lies in a cavity of the sphenoid bone the sella turcica Weighs about 0.5 g, and its normal dimensions in humans are about 10 x 13 x 6 mm.
More information1. To describe the gross structure of the pituitary gland and be able to identify the pars nervosa, pars intermedia and pars distalis.
ENDOCRINE Objectives 1. To describe the gross structure of the pituitary gland and be able to identify the pars nervosa, pars intermedia and pars distalis. 2. Identify and describe the histological features
More informationPituitary Gland (Hypophysis)
Endocrine Organs Pituitary Gland (Hypophysis) Function o Production of hormones Location o Connected to the hypothalamus via an infundibulum situated within the sella turcica of the sphenoid bone Structure
More information21 Endocrine organs and cells
21 Endocrine organs and cells The endocrine system consists of discrete organs, portions of organs and distributed cells that secrete hormones into surrounding tissues or structures. Objectives You should
More informationENDOCRINE SYSTEM ENDOCRINE SYSTEM
Endocrine system consists of organs that produce and secrete hormones "endocrine" = internal secretion into capillaries Hormones carried by the blood to another organ; exert effects Hormones manipulate
More informationEndocrine System. Organs and Tissues: Pituitary Adrenals Pancreas Thyroid Parathyroids
Endocrine System Organs and Tissues: Pituitary Adrenals Pancreas Thyroid Parathyroids Bruce A. Fenderson, Ph.D. Pathology, Anatomy & Cell Biology Sidney Kimmel Medical College Bruce.Fenderson@Jefferson.edu
More informationEndocrine Histology Lab GUIDE TO MICROSCOPES IN LAB
Endocrine Histology Lab GUIDE TO MICROSCOPES IN LAB The micrographs that appear on this review page are typical views of the tissues seen in the laboratory. The descriptions that accompany them are designed
More informationEpithelia will be discussed according to the following scheme: Type Number of layers Shape Line drawing. Squamous Cuboidal Columnar
Epithelia Epithelia will be discussed according to the following scheme: Type Number of layers Shape Line drawing Simple Squamous Cuboidal Columnar Covering and Lining epithelium Pseudostratified Stratified
More informationHistology of the Thyroid Gland
Histology of the Thyroid Gland A Introduction The thyroid hormone is derived The thyroid gland is responsible for the secretion of the from the amino acid tyrosine thyroid hormone that controls the basal
More informationThe Endocrine System Part II
The Endocrine System Part II Thyroid gland Parathyroid glands Regulation of blood Calcium level Adrenal gland Exocrine part of pancreas (Islets of Langerhans) Thyroid Gland Located in the anterior neck
More informationEndocrine System. Dr. Rajaa Ali
Endocrine System Dr. Rajaa Ali Structure and Function of the Pituitary Gland Anterior Lobe of the Pituitary Gland (Adenohypophysis) The anterior lobe of the pituitary gland regulates other endocrine glands.
More informationEndocrine Lab In-Lab Guide
Endocrine Lab In-Lab Guide The micrographs that appear on this review page are typical views of the tissues seen in the laboratory. The descriptions that accompany them are designed to help you recognize
More informationGastrointestinal Tract
CTO Lab #5 GI TRACT & GLANDS; ENDOCRINE SYSTEM Page 1 Gastrointestinal Tract Slide 126 This section through the esophagus shows the characteristic layers of the gastrointestinal tract. Examine the non-keratinized
More informationA&P 2 Endocrine Pre-Lab Guide Information from Videos and Exercises
A&P 2 Endocrine Pre-Lab Guide Information from Videos and Exercises Read Me In this Pre-lab, we are going over some basic concepts regarding endocrine glands. These notes cover important concepts found
More informationHistology. Dr.shatarat
Histology Dr.shatarat Dr.shatarat Dr.shatarat Cells of the adenohypophysis adenohypophysis Dr.shatarat Dr.shatarat Adenohypophysis high power acidopill basophill Chromophobes Dr.shatarat 1-Chromophils
More informationClassic Endocrine Glands
1 Endocrine system regulates metabolic activities help in bring out homeostasis 3 Nervous & endocrine systems functions in different way interact to modulate & coordinate metabolic activities of body 3
More informationThe endocrine system
The endocrine system Overview I. Pituitary II. Adrenals III. Pancreas IV. Thyroid V. Parathyroids VI. Ovaries, testis fenestrated capillaries are general structures http://www.ama-assn.org/ama/pub/category/7157.html
More informationEndocrine System. Kristine Krafts, M.D.
Endocrine System Kristine Krafts, M.D. Endocrine System Lecture Objectives Describe the location, histologic components, and embryologic origin of the pituitary gland. List the hormones produced by the
More informationGross anatomy. Dr. Shatarat & Dr. Badran
Gross anatomy Dr. Shatarat & Dr. Badran Dr. Shatarat & Dr. Badran Glands drain ipsillaterally by superior, middle, and inferior thyroid veins. Dr. Shatarat & Dr. Badran In the fifth week, epithelium of
More informationThe Endocrine System WSO School of Biomedical Sciences, HKU
The Endocrine System WSO School of Biomedical Sciences, HKU Objectives: 1. Be able to identify the endocrine glands and tissues. 2. Be able to describe their locations in the body and the functions of
More information3. The function of that hormone. In other words, what change does that hormone facilitate.
Slide 2 The endocrine operates to regulate internal functions. It does so, via the use of hormones, or chemical messengers. Hormones travel in the blood from the site of production to distant target cells
More informationFig The Endocrine System The connective tissue will be very well vascularized. Due to their need to distribute their products by the blood, the
Chapter 17 Endocrine System 17.1. Introduction The organs of the endocrine system are multicellular glands of epithelial origin. The parenchyma of endocrine organs is composed almost exclusively of epithelial
More informationLab Exercise Endocrine System
Lab Exercise Endocrine System Name Date Materials: Human torso model Compound light microscope Prepared slides of the pituitary gland, pineal gland, thyroid gland, parathyroid glands, thymus gland, adrenal
More informationANATOMY AND BASIC FUNCTION OF THE ENDOCRINE GLANDS
ANATOMY AND BASIC FUNCTION OF THE ENDOCRINE GLANDS Know these endocrine organs of the cat: thymus, thyroid, pancreas, adrenal glands, ovaries, and testes. Review and know microslides, hormones, and structures
More informationThe Endocrine System. Qian XiaoJing. Dept. of Anatomy, Histology & Embryology PUMC PEKING UNION MEDICAL COLLEGE QIAN
The Endocrine System Qian XiaoJing Dept. of Anatomy, Histology & Embryology PUMC pumc_he@126.com 69156461 Symptoms Failure of lactation Breast atrophy Lack of menstrual bleeding Loss of pubic & axillary
More informationThe Endocrine System: An Overview
C H A P T E R 17 The Endocrine System The Endocrine System: An Overview A system of ductless glands Secrete messenger molecules called hormones Hormones travel to distant body cells and signal characteristic
More informationThyroid Gland. Chapter 18 Part 2. Thyroid gland. Thyroid Gland. Thyroid Gland. Parathyroid Gland. Adrenal Gland. Pancreas
Thyroid Gland Chapter 18 Part 2 Synthesis and function of Thyroid hormone Calcitonin and Calcium regulation Parathyroid Gland PTH and Calcium regulation Adrenal Gland The corticosteroids Pancreas Regulation
More informationSlide 154: Pancreas, H&E
Slide 154: Pancreas, H&E the pancreas, located adjacent to the duodenum, is a mixed exocrine and endocrine gland; it is usually readily identifiable by the presence of the interspersed endocrine pancreatic
More informationMICROSCOPIC STRUCTURE, HISTOPHYSIOLOGY AND DEVELOPMENT OF ENDOCRINE GLANDS
Lecture 7 General Medicine_3rd semester MICROSCOPIC STRUCTURE, HISTOPHYSIOLOGY AND DEVELOPMENT OF ENDOCRINE GLANDS Hormones classification Components of the endocrine system Principles of humoral regulation
More informationThe Endocrine System. The Endocrine System: An Overview. A system of ductless glands. Interacts closely with the nervous system Endocrinology
PowerPoint Lecture Slides prepared by Leslie Hendon University of Alabama, Birmingham C H A P T E R 17 Part 1 The Endocrine System The Endocrine System: An Overview A system of ductless s Secrete messenger
More informationThe 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 informationDr. Heba Kalbouneh. Dr. Heba Kalbouneh. Dr. Heba Kalbouneh
Dr. Heba Kalbouneh Dr. Heba Kalbouneh Dr. Heba Kalbouneh Basement membrane: What is the basement membrane? - It is a layer of ECM separating the epithelial cells from the underlying connective tissue Basement
More informationENDOCRINE GLANDS. Pituitary Gland
ENDOCRINE GLANDS Endocrine (or internally secreting) glands are also named ductless glands, since they lack excretory ducts. Instead, the secretory cells release their products, hormones, into the extracellular
More informationENDOCRINE SYSTEM. Endocrine
ENDOCRINE SYSTEM Endocrine Function Help regulate internal functions Use chemical messengers Recall: Endocrine vs. Exocrine glands Nervous System vs Endocrine System Target Specificity Lock n Key action
More informationEmbryology and Histology of Pituitary and Adrenal gland
Embryology and Histology of Pituitary and Adrenal gland Prof. Abdulameer Al-Nuaimi E-mail: a.al-nuaimi@sheffield.ac.uk E. mail: abdulameerh@yahoo.com ituitary gland, is a pea-sized gland that sits in a
More informationGlandular Epithelium. Dr. Hersh Abdul Ham-Karim BVM&S, PG Dip, MSc and PhD
Glandular Epithelium Dr. Hersh Abdul Ham-Karim BVM&S, PG Dip, MSc and PhD Glandular Epithelium Groups of surface cells differentiate, proliferate, and penetrate underlying connective tissue. Their main
More informationThe 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 informationBIOH111. o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system
BIOH111 o Cell Module o Tissue Module o Integumentary system o Skeletal system o Muscle system o Nervous system o Endocrine system Endeavour College of Natural Health endeavour.edu.au 1 Textbook and required
More information5 Dr. Heba Kalbouneh
5 Dr. Heba Kalbouneh Glandular epithelium Gland: Is a collection of epithelial cells the secrets a certain product, like: proteins, lipids and carbohydrates. Secretion : A certain material that is produced
More informationEndocrine 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 informationHypothalamic Control of Posterior Pituitary
Hypothalamic Control of Posterior Pituitary Hypothalamus neuron cell bodies produce ADH: supraoptic nuclei Oxytocin: paraventricular nuclei Transported along the hypothalamohypophyseal tract Stored in
More informationGLANDULAR DISEASES. Department of Biology, College of Science, Polytechnic University of the Philippines 2
GLANDULAR DISEASES Jhia Anjela D. Rivera 1,2 1 Department of Biology, College of Science, Polytechnic University of the Philippines 2 Department of Biological Sciences, School of Science and Technology,
More informationHuman 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 informationChapter 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 informationPrelab #4 BLOOD; BONE MARROW; RESPIRATORY; INTEGUEMENT Page 1
Prelab #4 BLOOD; BONE MARROW; RESPIRATORY; INTEGUEMENT Page 1 Blood Slide 101 This a classic slide of blood cells using a Wright stain. Inspect red blood cells and their appearance. Note the approximate
More informationHomeostasis 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 informationLec.2 Histology Glandular Epithelium A gland 1. Endocrine Glands 2. Exocrine Glands Endocrine Glands Exocrine Glands
Lec.2 Histology Glandular Epithelium A gland is one or more cells that produce and secrete a specific product. The product is always a water-based fluid (aqueous) and usually contains proteins (the product
More informationChapter 18, Part 2! Chapter 18, Part 2 Endocrine system! The Endocrine System!
Chapter 18, Part 2! The Endocrine System! SECTION 18-3! The bilobed pituitary gland is an endocrine organ that releases nine peptide hormones! What you need to know for each hormone we cover:! 1. Name
More informationEndocrine 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 informationEndocrine 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 informationMICROSTRUCTURES SMALL INTESTIN LARGE INTESTIN PANCREAS LIVER GALLBLADDER SALIVARY GLANDS ADRENALS THYROID AND PARATHYROID GLANDS
MICROSTRUCTURES SMALL INTESTIN LARGE INTESTIN PANCREAS LIVER GALLBLADDER SALIVARY GLANDS ADRENALS THYROID AND PARATHYROID GLANDS HUMAN ANATOMY: MICROSTRUCTURES CLASSIFICATION: LOCATION AND BOUNDARIES,
More informationANATOMY AND PHYSIOLOGY 2B CELLS
ANATOMY AND PHYSIOLOGY 2B CELLS Cells/ Structure Cell Type (Epithelial) / Secretion Location(s) Function in Location Neurons -Multipolar -Associative -Bipolar, Unipolar Glial Cells (CNS) -Astrocytes -Microglia
More informationKnow at the level covered in these notes! SECTION 18-3! The bilobed pituitary gland is an endocrine organ that releases nine peptide hormones!
Chapter 18, Part 2! The Endocrine System! Know at the level covered in these notes! SECTION 18-3! The bilobed pituitary gland is an endocrine organ that releases nine peptide hormones! What you need to
More informationModel 3-50B or 3-88 III VIII. Olfactory Nerve. Optic Nerve. Oculomotor Nerve. Trochlear Nerve. Trigeminal Nerve. Abducens Nerve.
Model 3-50B or 3-88 I Olfactory Nerve II Optic Nerve Oculomotor Nerve III IV Trochlear Nerve Trigeminal Nerve V VI Abducens Nerve Glossopharyngeal Nerve IX VII Facial Nerve VIII Vestibocochlear Nerve or
More informationChapter 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 informationA adipose cells. B capillary. C epithelium
EPITHELIA Objective The objective of this class is to observe how different epithelia vary in terms of cell shape, size and number of cell layers enabling them to be well adapted for functions in different
More informationAN OBSERVATION OF PRIMARY TUMORS OF THE PITUITARY, OVARIES, AND MAMMARY GLANDS IN A MOUSE
AN OBSERVATION OF PRIMARY TUMORS OF THE PITUITARY, OVARIES, AND MAMMARY GLANDS IN A MOUSE W. U. GARDNER,' L. C. STRONG,' AND G. M. SMITH (Front the Department of Anatomy, Yale Univerdy School of Medicine)
More informationEndocrine 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 informationUnit II: Tissues and Integumentary System
Unit II: Tissues and Integumentary System 2.1 - Tissues Chapter 4 Written Response #1 1. What is a tissue? 2. What are four major types of tissues? Tissue Definition: a group or mass of similar cells working
More informationAdrenal gland And Pancreas
Adrenal gland And Pancreas Structure Cortex Glucocorticoids Effects Control of secretion Mineralocorticoids Effects Control of secretion Sex steroids Medulla Catecholamines Adrenal cortex 80% of an adrenal
More informationOn Three Cases of the Genuine Accessory Suprarenal
Dept. of Anat., Tokyo Med. and Dent. Univ. (Chief: Prof. T. KIRINO). On Three Cases of the Genuine Accessory Suprarenal Bodies in Man. In the course of studies on the ZUCKERKANDL's paraganglia, by careful
More informationEndocrine System. Regulating Blood Sugar. Thursday, December 14, 17
Endocrine System Regulating Blood Sugar Stress results in nervous and hormonal responses. The adrenal glands are located above each kidney. Involved in stress response. Stress Upsets Homeostasis Stress
More informationLab 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 informationLYMPH GLAND. By : Group 1
LYMPH GLAND By : Group 1 ANATOMY LYMPH NODE Lymphatic Organs Red bone marrow Thymus gland Lymph nodes Lymph nodules Spleen Primary organs Secondary organs Lymph Nodes Firm, smooth-surfaced, bean-shaped
More informationChapter 13 Endocrine System. Endocrine System. Endocrine System Functions
Chapter 13 Endocrine System Endocrine glands are ductless Exocrine glands have ducts 1 Endocrine System composed of cells, tissues and organs that secrete substances into the internal environment Hormones
More informationHormonal regulation of. Physiology Department Medical School, University of Sumatera Utara
Hormonal regulation of nutrient metabolism Physiology Department Medical School, University of Sumatera Utara Homeostasis & Controls Successful compensation Homeostasis reestablished Failure to compensate
More informationChapter 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 informationChapter 13 Endocrine System. Endocrine System. Endocrine Glands. Comparison of Nervous System and Endocrine System
Endocrine glands are ductless Exocrine glands have ducts Chapter 13 Endocrine System 1 Endocrine System composed of cells, tissues and organs that secrete substances into the internal environment Hormones
More informationThe Fine Structure of the Epithelial Cells of the Mouse Prostate* II. Ventral Lobe Epithelium
Published Online: 1 June, 1960 Supp Info: http://doi.org/10.1083/jcb.7.3.511 Downloaded from jcb.rupress.org on September 28, 2018 The Fine Structure of the Epithelial Cells of the Mouse Prostate* II.
More informationThe 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 informationFor more information about how to cite these materials visit
Author: A. Kent Christensen, Ph.D., 2009 License: Unless otherwise noted, this material is made available under the terms of the Creative Commons Attribution Share Alike 3.0 License: http://creativecommons.org/licenses/by-sa/3.0/
More informationDR. DARWISH H. BADRAN. Parathyroid glands
Parathyroid glands History 1849 - Sir Richard owen provided 1st accurate description of normal parathyroid glands after examining Indian Rhinoceros 1879 - Anton Wölfer described tetany in a patient
More informationChapter 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 informationBiology 218 Human Anatomy
Chapter 23 Adapted form Tortora 10 th ed. LECTURE OUTLINE A. Comparison of Nervous and Endocrine Systems (see Table 23.1): (p. 704) 1. The nervous and endocrine systems together coordinate functions of
More informationChapter 12 The Digestive Glands
Chapter 12 The Digestive Glands Lyu Zhengmei Department of Histology and Embryology, Anhui Medical University Components of digestive glands large salivary glands, pancreas, liver, gallbladder. These organs
More informationGlandular Epithelium. Dr. Heba Kalbouneh Associate Professor of Anatomy and Histology
Glandular Epithelium Dr. Heba Kalbouneh Associate Professor of Anatomy and Histology Glands Glandular epithelia are tissues formed by cells specialized to produce secretion. Secretion: if substances produced
More informationPANCREATIC BETA CELLS PRODUCE AND SECRETE
15 March, 2018 PANCREATIC BETA CELLS PRODUCE AND SECRETE Document Filetype: PDF 374.06 KB 0 PANCREATIC BETA CELLS PRODUCE AND SECRETE Among the oldest and cheapest drugs for diabetes are the drugs that
More informationTitle. Author(s)KANAGAWA, Hiroshi. CitationJapanese Journal of Veterinary Research, 11(2): Issue Date Doc URL. Type.
Title HISTOPATHOLOGICAL STUDIES ON THE REPRODUCTIVE ORGANS ADRENALS AND LIVERS FROM SLAUGHTERED CATTLE IN HOKKA Author(s)KANAGAWA, Hiroshi CitationJapanese Journal of Veterinary Research, 11(2): 61-6 Issue
More informationAnatomy & Physiology Revealed Instructions. 1. From the Module dropdown menu, chose the 12. Digestive system.
#10 - Objectives: Examine the histology of selected body organs using Anatomy & Physiology Revealed software and microscope slides. Be able to identify each organ and the specific structures indicated
More informationEndocrine 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 informationChapter 1: Cells and Tissues
Chapter 1: Cells and Tissues Cells and Tissues Carry out all chemical activities needed to sustain life Cells are the building blocks of all living things Tissues are groups of cells that are similar in
More information(b) Stomach s function 1. Dilution of food materials 2. Acidification of food (absorption of dietary Fe in small intestine) 3. Partial chemical digest
(1) General features a) Stomach is widened portion of gut-tube: between tubular and spherical; Note arranged of smooth muscle tissue in muscularis externa. 1 (b) Stomach s function 1. Dilution of food
More informationHypophysis. Organization
Hypophysis The hypophysis or pituitary is a complex endocrine gland located at the base of the brain, lying in the sella turcica, a small depression in the sphenoid bone. It is attached to the hypothalamic
More informationBasic Histology. By Mrs. Bailey
Basic Histology By Mrs. Bailey Primary Tissues 1. Epithelial Tissue 2. Connective Tissue 3. Muscle Tissue 4. Nervous Tissue Very cellular Supported by underlying connective tissue Epithelial & connective
More informationEndocrine System Objectives
Component 3-Terminology in Healthcare and Public Health Settings Unit 7- Endocrine System Lecture 7a-Overview of the Endocrine System, Adrenal Glands and Pancreas This material was developed by The University
More informationAnatomy PHL 212. Dr. Dina A. A. Hassan. -
Anatomy PHL 212 Dr. Dina A. A. Hassan Associate Professor College of Pharmacy (Female Section) Sattam Bin Abdulaziz University Al kharj / Kingdom of Saudi Arabia Email :- da.hassan@psau.edu.sa 1 Anatomy
More informationBehzad Mobini* Islamic Azad University, Shahrekord Branch, Shahrekord, Iran. Received: 25 October 2010, Accepted: 4 January 2011
Original Article Veterinary Research Forum Vol: 2, No: 1, March, 2011, 25-29 Histological Studies on Pancreas of Goose (Anser Albifrons) Behzad Mobini* * Department of Anatomical Sciences, Faculty of Veterinary
More informationCHAPTER 50 Endocrine Systems. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
CHAPTER 50 Endocrine Systems Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Endocrine system All the endocrine glands and other organs with hormonesecreting
More informationTissues. tissue = many cells w/ same structure and function. cell shape aids function tissue shape aids function. Histology = study of tissues
Tissues tissue = many cells w/ same structure and function cell shape aids function tissue shape aids function Histology = study of tissues 4 types of tissues Epithelial coverings contact openings Connective
More informationChapter 16: The Endocrine System
Chapter 16: The Endocrine System Objectives Define the terms endocrine and exocrine. Describe the physiology of hormones including the different types and the mechanisms of their actions. Compare endocrine
More informationChapter 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 informationBrain Tumors. Medulloblastoma. Pilocytic astrocytoma: Ahmed Koriesh, MD. Pathological finding
NeuroPathology Page 8 Brain Tumors Pathological finding Pseudorosette Rosenthal fibers Rosettes Wet Keratin Psammoma bodies Fried egg Tumor Ependymoma, SEGA Pilocytic astrocytoma Medulloblastoma Craniopharyngioma
More informationMajor endocrine glands and their hormones
Chapter 18 Major endocrine glands and their hormones Endocrine glands Pituitary gland Has two major parts Anterior lobe called the adenohypophysis is epithelial in origin Posterior lobe called the neurohypophysis
More informationGlandular Epithelium. Dr. Heba Kalbouneh Assistant Professor of Anatomy and Histology
Glandular Epithelium Dr. Heba Kalbouneh Assistant Professor of Anatomy and Histology Glands Gla dular epithelia are tissues for ed y ells spe ialized to produ e se retio. Secretion: if substances produced
More informationHISTOGENESIS OF HUMAN FOETAL PITUITARY AT VARIOUS GESTATIONAL AGES S. Babu Rao * 1, G. Geetha vani 2, V. Subhadra Devi 3.
Original Research Article HISTOGENESIS OF HUMAN FOETAL PITUITARY AT VARIOUS GESTATIONAL AGES S. Babu Rao * 1, G. Geetha vani 2, V. Subhadra Devi 3. ABSTRACT International Journal of Anatomy and Research,
More informationThe Endocrine System PART B
9 The Endocrine System PART B PowerPoint Lecture Slide Presentation by Jerry L. Cook, Sam Houston University ESSENTIALS OF HUMAN ANATOMY & PHYSIOLOGY EIGHTH EDITION ELAINE N. MARIEB Thyroid Gland Found
More informationEndocrine System. School of Medicine, Zhejiang University 2017 年 5 月 27 日
Endocrine System School of Medicine, Zhejiang University 2017 年 5 月 27 日 Introduction 1. Endocrine system: 1 Endocrine glands: 2 Endocrine tissue(clusters of cells ): pancreas islet, follicle, corpus luteum,et
More informationENDOCRINOLOGY Cross setion of discipline. Zdeněk Fryšák, III. interní klinika, nefrologie, revmatologie a endokrinologie FN a LF Olomouc
ENDOCRINOLOGY Cross setion of discipline Zdeněk Fryšák, III. interní klinika, nefrologie, revmatologie a endokrinologie FN a LF Olomouc Coordination of systems involve Nervous System» Rapid response» Short
More information