Male Reproductive System - PP

Sperm (Spermatozoon)

Motile, searches for egg

Median Septum - keeps the testes separate

Tunica vaginalis

Tunica albuginea

Lobule, testes have hundreds of these, each with 1-3 seminiferous tubules

Seminiferous tubules - Where germ cells become sperm

Nurse cells help make blood-testis barrier

Mitosis

Spermatogonium > primary spermatocyte

Meiosis I

Primary Spermatocyte > 2 secondary spermatocytes

Meiosis II

Secondary spermatocyte > 4 spermatids

Spermiogenesis

Spermatids differentiate into sperm

Takes about 3 weeks

Occurs in the rete testis and epididymis

Acrosome

Acrosome (lysosome)

Penis

Root, Shaft and Glans (head)

Prepuce (foreskin)