A<unk>  (a kind of sustentacular cell) is a "nurse" cell of the testicles that is part of a seminiferous tubule and helps in the process of spermatogenesis, the production of sperm. It is activated by follicle-stimulating hormone (FSH) secreted by the adenohypophysis, and has FSH receptor on its membranes. It is specifically located in the convoluted seminiferous tubules (since this is the only place in the testes where the spermatozoa are produced). Development of<unk> s is directed by the testis-determining factor protein.
Sertoli cell
Elliptocyte
Krause's glands
LE cell
Nurse cell
Ciaccio's glands
Skene's gland
Serous gland