Difference between revisions of "Endocrine - Gonad Development"

From Embryology
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==Introduction==
 
==Introduction==
 
[[File:XXhpgaxis.gif|thumb|Female HPG axis]]
 
[[File:XXhpgaxis.gif|thumb|Female HPG axis]]
[[2009_Lecture_16|Lecture - Genital Development]] | [http://embryology.med.unsw.edu.au/Notes/endocrine15.htm UNSW Embryology - Gonads] see also previous Sexual Differentiation Lecture/Practical
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{{Template:Endocrine Links}} | [[2009_Lecture_16|Lecture - Genital Development]] | [http://embryology.med.unsw.edu.au/Notes/endocrine15.htmoriginal page]
  
 
HPG Axis - [http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=endocrin&part=A972&rendertype=box&id=A1057 Endocrinology - Simplified diagram of the actions of gonadotrophins]
 
HPG Axis - [http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=endocrin&part=A972&rendertype=box&id=A1057 Endocrinology - Simplified diagram of the actions of gonadotrophins]

Revision as of 15:03, 25 April 2010

Introduction

Female HPG axis
Endocrine Links: Introduction | BGD Lecture | Science Lecture | Lecture Movie | pineal | hypothalamus‎ | pituitary | thyroid | parathyroid | thymus | pancreas | adrenal | endocrine gonad‎ | endocrine placenta | other tissues | Stage 22 | endocrine abnormalities | Hormones | Category:Endocrine
Historic Embryology - Endocrine  
1903 Islets of Langerhans | 1904 interstitial Cells | 1908 Pancreas Different Species | 1908 Pituitary | 1908 Pituitary histology | 1911 Rathke's pouch | 1912 Suprarenal Bodies | 1914 Suprarenal Organs | 1915 Pharynx | 1916 Thyroid | 1918 Rabbit Hypophysis | 1920 Adrenal | 1935 Mammalian Hypophysis | 1926 Human Hypophysis | 1927 Hypophyseal fossa | 1932 Pineal Gland and Cysts | 1935 Hypophysis | 1937 Pineal | 1938 Parathyroid | 1940 Adrenal | 1941 Thyroid | 1950 Thyroid Parathyroid Thymus | 1957 Adrenal

| Lecture - Genital Development | page

HPG Axis - Endocrinology - Simplified diagram of the actions of gonadotrophins

Gonad Development

  • mesoderm - mesothelium and underlying mesenchyme, primordial germ cells
  • Gonadal ridge - mesothelium thickening, medial mesonephros
  • Primordial Germ cells - yolk sac, to mesentery of hindgut, to genital ridge of developing kidney

Differentiation

  • testis-determining factor (TDF) from Y chromosome: presence (testes), absence (ovaries)

Testis

  • 8 Weeks, mesenchyme, interstitial cells (of Leydig) secrete testosterone, androstenedione
  • 8 to 12 Weeks - hCG stimulates testosterone production
  • Sustentacular cells - produce anti-mullerian hormone to puberty

Ovary

  • X chromosome genes regulate ovary development

References


Reviews

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  • Endocrine Development - All (14277) Review (4620) Free Full Text (3140)

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Cite this page: Hill, M.A. (2019, October 14) Embryology Endocrine - Gonad Development. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Endocrine_-_Gonad_Development

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© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G