Sertoli cells are present in seminiferous tubules of the male gonads, the testes. They were first observed in 1865 by a young Italian physician Enrico Sertoli. Sertoli cells comprise one of the two types of cells in the germinal epithelium, the other being of spermatogonia lineage.
FSH stimulates both the production of androgen-binding protein (ABP) by Sertoli cells and is important for initiation of spermatogenesis.
These cells provide nutrition to developing sperm cells and are regulated by FSH.
A solid cylinder of mass 2 kg and radius 0.2 m is rotating about its own axis without friction with angular velocity 5 rad/s. A particle of mass 1 kg moving with a velocity of 5 m/s strikes the cylinder and sticks to it as shown in figure.
The angular velocity of the system after the particle sticks to it will be:
Reproduction in human beings involves the fusion of male and female gametes that produces in their reproductive system.
The male reproductive system comprises:
The female reproductive system is active before, during, and after fertilization as well. It comprises the following parts: