The first stage of graafian follicular growth involves
Addition of layers of granulosa cells
Moderate enlargement of the ovum
Formation of theca interna
Formation of theca externa
Fertilization takes place in
Which cells come earliest in the sequence of sperm production?
Name the hormones involved in regulation of spermatogenesis.
The figure given below shows the sectional view of ovary. Select the option which gives correct identification of marked structure ( $A$ to $D$ ) and its feature.
Release of spermatozoa from urethra by male animals is called