Primitive male germ cells; precursors to sperm cells.
cells located within the seminiferous tubules that produce sperm.
Spermatogonia are the cells in each testicle, which become active around puberty and start producing sperm cells. It takes about three months to produce a mature, human sperm.
Gr. spermatos - seed, semen; Gr. gone - seed]. Diploid germ cells in the testis of males that gives rise to spermatocytes through repeated mitotic divisions.
Stem cells whose mitotic divisions give rise to other stem cells and to primary spermatocytes.