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Testis

 

Overview

 

Clinical anatomy

Summary of structures of the testis
Summary of structures of the epididymus
Summary of structures of the ductus deferens

Cross section through left scrotum and testis

Cross section through testis and epididymus

Macroscopic view: testicle of a cat

Hormonal roles

Pathology

Seminoma of the testis

Electron microscopy

Clinical case

Testis
 

Instructions

Macroscopy

  1. Note the unexpected arterial supply, venous drainage, lymph drainage and nerve supply of the testis.
  2. Discuss the embryological descent of the testes
  3. Describe the general structure of the testis.
  4. Consider the function of the Leydig cells (interstitial cells).

Microscopy

Germinal epithelium of the testicle

Leydig cells--secrete testosterone
Tunica albuginea--a dense capsule encasing each testis; which inhibits direct extension of tumor
Rete (ree' tee) testis--network of efferent ducts, analagous to the pelvis van die Nier
Epididymis--storage vessel for sperm--long coiled tube external to testis
Vas deferens (ductus deferens)--muscular extension of epididymis which carries sperm to urethra

 

Slides

Testis



Epididymus


Ductus deferens


 

Archive

 
Testis
Epididymus
Ductus deferens
 
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© 2002 - februarie 2008 marius loots