What is spermatogenesis? Briefly describe the process of spermatogenesis.
Spermatogenesis is the process of the production of sperms from the immature germ cells in males. It takes place in seminiferous tubules present inside the testes. During spermatogenesis, a diploid spermatogonium (male germ cell increases its size to form a diploid primary spermatocyte. This diploid primary spermatocyte undergoes first meiotic division (meiosis $I$) which is a reductional division to form two equal haploid secondary spermatocytes. Each secondary spermatocyte then undergoes second meiotic division (meiosis $II$) to form two equal haploid spermatids. Hence, a diploid spermatogonium produces four haploid spermatids. These sper atids are transformed into spermatozoa (sperm) by the process called spermiogenesis. (figure)
At the end of first meiotic division, the male germ cells differentiate into
Secondary oocyte is ..........
Name the hormones involved in regulation of spermatogenesis.
What do you mean by the term spermateleosis
A cross section at the midpoint of the middle piece of a human sperm will show