by Tony Marven | Apr 21, 2018
Primitive male germ cell that gives rise to primary spermatocytes in spermatogenesis.
by Tony Marven | Apr 21, 2018
Elongated striated cells in the seminiferous tubules of the testis to which the spermatids become attached and from which they derive...
by Tony Marven | Apr 21, 2018
outer layer of the trophoblasts that forms finger-like projections that invade the endometrium to secure the blastocyst firmly in place within the...
by Tony Marven | Apr 21, 2018
Male hormone produced primarily by the testes that is the main androgen responsible for inducing and maintaining secondary sex characteristics.
by Tony Marven | Apr 21, 2018
LH-sensitive cells surrounding the outside of the follicle; those of the dominant follicle convert cholesterol to androgens under the influence of...
