Key Topics
Section Through Testis
 

90% of the testis consists of seminiferous tubules which are tightly coiled.
The walls of the seminiferous tubules are made up of endothelial cells called Sertoli cells.
The testes are at 1.5 - 2.5 degree Celsius below core body temperature. The epididymus is a 5m coiled tube which collects sperm. Passage takes 8 days during which time the sperm become progressively motile.

 

 
Reproductive Tracts of Male and Female
Female
+ Follicle
+
 + Primary Follicle
+
+
 + Hypotaxis
+
+
 + Follicle Growth
+
+
 + Menstrual Cycle
+
 + Secondary Follicle
+
+
 + Gonad-Cell Theory

Male
+
 Testis
+
+
Seminiferous Tubule 
+
+
+

Cross Section of Seminiferous Tubule
+
+
+ Mature Spermatozoan
      + Spermatogenesis
+ Hypothalmic
Fertilisation