Spermatogenesis
 - Timing and location Begins at puberty with spermatogonia. Full development takes 2 months. Occurs in seminiferous tubules. Produces spermatids that undergo spermiogenesis (loss of cytoplasmic contents, gain of acrosomal cap) to form mature spermatozoon.
 - Spermatogonium Diploid= 2N, 2C. Behind blood-testis barrier (tight junctions)
 - 1° spermatocyte Diploid (2N, 4C). Undergoes meiosis I.
 - 2° spermatocyte Haploid (1N, 2C). Undergoes meiosis II to become spermatid.

 Haploid (1N, 1C). Matures to become spermatozoon.
 - Spermatid Haploid (1N, 1C). Matures to become spermatozoon.


#Pathophysiology #Spermatogenesis #Spermatocyte #Spermatid