Spermatogenesis | a closer look with detailed explanation
The process of formation of male gametes/sex cells is called Spermatogenesis. Welcome to Sir ML's Biology, in this video with detailed explanation, we will take a closer look at what happens inside the testes, and how the spermatozoa/sperm are formed through various steps/phases of the process of spermatogenesis. Like oogenesis, this process has similar phases, a multiplication phase, when spermatogonia divide and multiply, a growth phase, in which the spermatogonia grows and accumulates nourishment to become a primary spermatocytes, and a maturation phase that involves the chromosome number reduction when primary spermatocytes becomes secondary spermatocytes and spermatids, with an additional phase of transformation called spermiogenesis, in which spermatids differentiates into a physiologically mature sperm/spermatozoa. Spermatogenesis is regulated by the hormones GnRH, FSH, LH and testosterone.
Timestamp:
00:00 Intro
00:10 What is spermatogenesis?
00:37 T.S. of testis
01:30 types of cells in testes
02:50 Multiplication phase of spermatogenesis
05:00 Growth phase of spermatogenesis
05:50 Maturation phase of spermatogenesis
06:50 Spermiogenesis
09:06 conduction of spermatozoa
10:31 Summary