File:Leydig cell PMID13693345 EM03.jpg

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Leydig Cell Electron Micrograph

Opossum testicular interstitial cells showing extensive smooth endoplasmic reticulum involved in testosterone synthesis.


In this historic 1961 paper, Smooth Endoplasmic Reticulum (SER) is called "agranular endoplasmic reticulum", because of the absence of attached ribosomes (RER). SER is abundant in cells involved in steroidal hormone synthesis.

Figure legend

A view at higher power of interstitial cell cytoplasm, showing the elaborate meshwork of interconnecting tubules which constitutes the agranular endoplasmic reticulum. There is biochemical evidence indicating that this reticulum is involved in the biosynthesis of the steroid hormones secreted by these cells. At the upper right is one of the small bodies (b) commonly seen in the cytoplasm. original image X 33,000.


Leydig Cell Links: Low power EM | High power EM | Testis Development


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Historic Embryology - Genital 
General: 1901 Urinogenital Tract | 1902 The Uro-Genital System | 1904 Ovary and Testis | 1912 Urinogenital Organ Development | 1914 External Genitalia | 1921 Urogenital Development | 1921 External Genital | 1942 Sex Cords | 1953 Germ Cells | Historic Embryology Papers | Historic Disclaimer
Female: 1904 Ovary and Testis | 1904 Hymen | 1912 Urinogenital Organ Development | 1914 External Genitalia | 1914 Female | 1921 External Genital | 1927 Female Foetus 15 cm | 1927 Vagina | 1932 Postnatal Ovary
Male: 1887-88 Testis | 1904 Ovary and Testis | 1904 Leydig Cells | 1906 Testis vascular | 1909 Prostate | 1912 Prostate | 1914 External Genitalia | 1915 Cowper’s and Bartholin’s Glands | 1920 Wolffian tubules | 1935 Prepuce | 1935 Wolffian Duct | 1942 Sex Cords | 1943 Testes Descent | Historic Embryology Papers | Historic Disclaimer

Reference

CHRISTENSEN AK & FAWCETT DW. (1961). The normal fine structure of opossum testicular interstitial cells. J Biophys Biochem Cytol , 9, 653-70. PMID: 13693345

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Original figure 3 rotated, relabelled and adjusted in size and contrast.


Cite this page: Hill, M.A. (2024, April 20) Embryology Leydig cell PMID13693345 EM03.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Leydig_cell_PMID13693345_EM03.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

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Date/TimeThumbnailDimensionsUserComment
current17:21, 7 August 2014Thumbnail for version as of 17:21, 7 August 20141,359 × 957 (325 KB)Z8600021 (talk | contribs)
17:14, 7 August 2014Thumbnail for version as of 17:14, 7 August 20141,359 × 957 (288 KB)Z8600021 (talk | contribs)J Biophys Biochem Cytol. 1961 Mar;9:653-70. The normal fine structure of opossum testicular interstitial cells. CHRISTENSEN AK, FAWCETT DW. Abstract The interstitial tissue of the opossum testis includes interstitial or Leydig cells, macrophages, and s...

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