UNSW Embryology

Development of the Endocrine System

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Page LinksSelected Serial Sections HypophysisThyroidThymusAdrenalUNSW Histology Slides WWW Histology About Notes

Page 1 | Introduction
Page 2 | Questions | Abnormal | OMIM | Refs
Page 3 | Pig Stage 13/14
Page 4 | Human (Stage22)
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Stage 22 Embryo (Human) Selected High power

Hypophysis (pituitary) (click on image or section name to open full size image) A7: Overview of embryo (stage 22) head region where high power sections is from in B2. Hypophysis (pituitary) in centre of image cut tranversely. B2: Neurohypophysis (infundibular part with hypothalamic recess of 3rd ventricle). Cavity in centre of image is the residual lumen of Rathke's pouch, which will form pars intermedia. Surrounding the hypophysis is sphenoid cartilage. Thyroid C2: Overview of embryo (stage 22) neck region where high power sections is from in C3. Thyroid gland at top of image lying anterior and extending lateral to the trachea. C3: Thyroid gland. Thymus C5: Overview of embryo (stage 22) chest region where high power sections is from in C6. Thymus gland at top of image anterior to section through aortic arch. C6: Thymus gland. Adrenal E6: Overview of embryo (stage 22) at the level of the liver where adrenals are seen. F3: Fetal and permanent adrenal cortex. The medulla of the adrenal gland is of neural crest origin and it is not yet encapsulated by the cortex.

UNSW Histology Slides The following slides are from the UNSW, Department of Anatomy, Histology Slide Set 2003. Slides are numbered according to the Histology Set number. The tissues listed relate to this developing system. Note that most slides are from mature tissues (unless otherwise indicated, see also all slides). UNSW Department of Anatomy- Histology Page
Slide	Tissue	Animal	Stain
29 30 71 25 26 77 77A 24A 25 26 39 39A 40 40A 24 24A 36	Adrenal Adrenal Appendix, vermiform Pituitary (Hypophysis) Pituitary (Hypophysis) Pancreas Pancreas Thyroid and parathyroid Pituitary (Hypophysis) Pituitary (Hypophysis) Thymus (juvenile) Thymus (juvenile) Thymus (juvenile) Thymus (adult) Thymus (neonatal) Thyroid and parathyroid Tonsil (palatine)	monkey human human human ox human monkey chimp human ox human human human human human chimp human	H & E Masson's Trichrome Alcian Blue, H & E Tri-PAS Picro-Mallory H & E Phloxine, H & Tartrazine Masson's Trichrome Tri-PAS Picro-Mallory H & E H & Van Gieson H & Van Gieson H & E H & E Masson's Trichrome H & E

WWW Histology Links to related WWW sites with Histological images for Endocrine system. Note that all internet links change with time if link does not work use text shown to search WWW. Loyola University Medical Education Network (LUMEN- Histology) Part 14: Endocrine Glands University of WA- Department of Anatomy and Human Biology (Histology Notes) HA235 - Histology - Endocrines University of Kansas Department of Anatomy and Cell Biology (JayDoc HistoWeb) Endocrine System Harvard Medical School (MedWeb)   The College of Medicine at the University of Florida (Histology Tutorial) Laboratory 16: Endocrine System (Endocrine System Quiz)

High Power (st22) A1 A2 A3 A4 A5 A6 A7 B1 B2 B3 B4 B5 B6 B7 C1 C2 C3 C4 C5 C6 C7 D1 D2 D3 D4 D5 D6 D7 E1 E2 E3 E4 E5 E6 E7 F1 F2 F3 F4 F5 F6 F7 G1 G2 G3 G4 G5 G6 G7

Links Development Notes System Notes Molecular Notes Serial Sections Homepage Pig Homepage Human Homepage

About Notes

• Notes from the Embryology Program compiled and written by Dr Mark Hill.
  • Some notes derived from historic class notes.
• Note Links to OMIM Entries are copies of originals for computers without internet access. Computers with internet access can directly access the database.

m.hill@unsw.edu.au
Date Last Modified: 11/3/99
This site maintained by Dr M. Hill