What is a spermatogenic cell?
one of a group of cells that develop in the walls of the seminiferous tubules. Spermatogenic cells include spermatogonia, spermatocytes, and spermatids—all of which are transitional forms between primary sexual cells and spermatozoa.
What is spermatogenic epithelium?
The germinal epithelium is the epithelial layer of the seminiferous tubules of the testicles. It is also known as the wall of the seminiferous tubules. The cells in the epithelium are connected via tight junctions. The second cell type are the cells belonging to the spermatogenic cell lineage.
What is the function of spermatogenic cells of the seminiferous tubules?
In between the Sertoli cells are spermatogenic cells, which differentiate through meiosis to sperm cells. Sertoli cells function to nourish the developing sperm cells. They secrete androgen-binding protein, a binding protein which increases the concentration of testosterone inside the seminiferous tubules.
What are the different spermatogenic cells?
Primary spermatocytes, secondary spermatocytes, spermatids and spermatozoa are in the adluminal compartment. The lumen also contains some spermatozoa, and cellular debris.
What does Spermatogonium mean?
Medical Definition of spermatogonium : a primitive male germ cell that gives rise to primary spermatocytes in spermatogenesis.
What cells are located in the epithelium of seminiferous tubules?
The seminiferous tubules are lined by a complex stratified epithelium containing two distinct populations of cells, spermatogenic cells, that develop into spermatozoa, and Sertoli cells which have a supportive and nutrient function.
What are undifferentiated spermatogenic cells called?
Undifferentiated spermatogenic stem cells, called spermatogonia, lie along the basal lamina at the periphery of tubules, interspersed between Sertoli cells.
What does Myoid cell do?
Peritubular myoid cells are responsible for the contractile nature of the seminiferous tubule. This contraction helps move the spermatozoa and fluid to the rete testes. There are a number of mediators involved in the regulation of contraction.
What is the importance of spermatogenesis?
The significance of spermatogenesis is that it releases mature male gametes. These male gametes are termed as sperms but more precisely as spermatozoa, that can fertilize the female gamete, the oocyte, to create a single-celled zygote. The zygote grows into the offspring through conception.
What are the steps involved in spermatogenesis?
Spermatogenesis can be divided into three phases: (1) proliferation and differentiation of spermatogonia, (2) meiosis, and (3) spermiogenesis, a complex process that transforms round spermatids after meiosis into a complex structure called the spermatozoon.