ANAT2241 Endocrine System

From Embryology
ANAT2241 This practical support page content is not part of the virtual science practical class and provides additional information for student self-directed learning purposes. 2018 - Moodle ANAT2241 | Virtual slides

General Objective

To know the histological and cytological features and hormones of the endocrine glands.

Specific Objectives

  1. To know the structure of the thyroid and parathyroid glands and the hormones secreted.
  2. To know the histology of the adrenal cortex and medulla and the hormones secreted by each section.
  3. To understand the close relationship between the hypothalamus and the pituitary.
  4. To know the parts of the hypophysis (pituitary). To identify chromophil (acidophil, basophil) and chromophobe cell types of the pars distalis and the hormones associated with each group of cells. To describe the structure of the neurohypophysis and the process of neurosecretion.
  5. To know the histology of pancreatic islet cells and their hormonal secretions.

Learning Activities

Examine the following virtual slides, identify draw and label the following structures. Note the hormone secreted by the various structures and their major function.


Virtual Slides: Endocrine System

Histology

Pituitary

Adrenal

Pituitary Histology: Pituitary overview | Anterior H&E | Anterior H&E | Anterior labeled | PAS/O Overview | Acidophils | Basophils | Posterior labeled | Posterior unlabeled | Histology Stains | BGD - Endocrine Histology | Pituitary Development
Thyroid Links: low power image | high power image | unlabeled human image | unlabeled sheep image | Thyroid Development


Course Links

Histology Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ANAT2241 Support | Histology | Histology Stains | Embryology Glossary
Common Histology Stains  
Histology Stains - Common Stains and Their Reactions
Stain
Nucleus
Cytoplasm
Collagen
RBCs
Other
Haematoxylin
blue
-
-
-
mucins - light blue
Eosin
-
pink
pale pink
bright red
colloid - pinkmuscle - red
Iron Haematoxylin
blue/black
-
-
-
Van Gieson
-
brown/yellow
red
yellow
muscle: yellow/browncartilage - pink
Verhoeff's Elastin
black
-
-
-
elastic fibres - black
Tartrazine
-
yellow
yellow
yellow
Silver Impregnation
-
-
grey/brown
-
reticular fibres - black
Methyl Green
dark green
light green
light green
green
Nuclear Fast Red
red
pink
pink
pink
Gomori's Trichrome
purple/red
purple
green
red
keratin - redmuscle - purple/red
Heidenhain's Azan
red
purple/red
deep blue
red
muscle - red
Osmium Tetroxide
-
-
brown
brown
myelin, lipids - black
Alcian Blue
-
-
-
-
mucins, - blue
Periodic acid-Schiff (PAS)
-
-
pink
-
mucins, glycogen, glycocalyx - magenta
Phosphotungstic Acid-Hematoxylin (PTAH)
blue
-
red
blue
muscle bands - blue
Masson's Trichrome
blue/black
red
green/blue
red
cartilage, mucins - blue or green; muscle - red
Luxol Fast Blue
-
-
-
variable
myelin - blue
Aldehyde Fuchsin
-
-
-
-
elastic fibres, mast cells - deep purple
Light Green
-
-
light green
-
Gallocyanin
dark blue
-
-
-
nucleic acids, Nissl granules - dark blue
Romanowsky (e.g. Leishman's)
blue
pink
acidophils - red, basophils - blue, azurophilic - purple
Aldehyde Pararosanilin elastic fibres - purple
Haematoxylin and Eosin
One of the most common staining techniques in pathology and histology. Acronym "H and E" stain. (H&E, HE).


Haematoxylin
  • Stains nuclei blue to dark-blue.
  • Stains the matrix of hyaline cartilage, myxomatous, and mucoid material pale blue.
  • Stains myelin weakly but is not noticeable if combined with eosin stain.
  • combined with Orange G (H & Or. G.) instead of eosin, specifically stains the granules of acidophilic cells of the adenohypophysis (anterior pituitary).
Eosin
  • Stains cytoplasm pink to red; red blood cells are also bright red.
  • Common counterstain to hematoxylin.
  • Stain intensity varies with the formula as well as the fixative.

Virtual slides

Moodle - ANAT2241 - 2018

Pages require student zpass to access.

The Virtual Microscope | Covering and Lining Epithelia | Glandular Epithelia | Connective Tissue Components | Connective Tissue Types | Bone, Bone Formation and Joints | Blood | Muscle Tissue | Nervous Tissue | Cardiovascular System | Respiratory System | Integumentary System (skin) | Liver, Gallbladder, and Pancreas | Gastro-Intestinal System I | Gastro-Intestinal System II | Lymphatic Tissue and Immune System | Endocrine System | Urinary System | Female Reproductive System | Male Reproductive System | Special Sense Organ: The Eye


Practical support

Pages can be accessed from any internet connected computer.

ANAT2241 Support Links: The Virtual Microscope | Covering and Lining Epithelia | Glandular Epithelia | CT Components | CT Types | Bone, Bone Formation and Joints | Blood | Muscle | Nervous | Cardiovascular | Respiratory | Integumentary | GIT Organs | GIT 1 | GIT 2 | Lymphatic and Immune | Endocrine | Urinary | Female Reproductive | Male Reproductive | Eye | Histology Stains | Histology Drawings | Practicals Health and Safety 2013 | Moodle - 2018


ANAT2241 This practical support page content is not part of the science practical class and provides only background information for student self-directed learning purposes.


Cite this page: Hill, M.A. (2018, November 14) Embryology ANAT2241 Endocrine System. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/ANAT2241_Endocrine_System

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© Dr Mark Hill 2018, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G