Transport of Sperm Sperm are forced forward by peristalsis, fluid pressure through rete testis, efferent ductules, into epididymis. 100-fold concentration in epididymis. Sperm are stored in epididymis and vas deferens prior to ejaculation. Rapid contractions of urethra eject semen. Urinary sphincter prevents mixing of urine and semen.
Primordial gonad can develop into ovary or testes.
The Sexual Brain 2. The use and abuse of research on homosexuality. Analogous to Sertoli cells in testes. Analogous to Leydig cells in testes.