Role of growth hormone in spermatogenesis
Growth hormone (as well as most of the other body hormones) is necessary for controlling background metabolic functions of the testes. Growth hormone specifically promotes early division of the spermatogonia themselves; in its absence, as in pituitary dwarfs, spermatogenesis is severely deficient or absent, thus causing infeility.
Late division of spermatocytes
Early division of spermatogonia
Formation of acrosome
Stimulation of Seoli and Leydig cells
Endocrinology