Oxytocin used in
Amenorrhea
Parturition
Ovulation
Implantation
After a sperm has penetrated an ovum in the process of fertilization, entry of further sperms is prevented by
Cells of leydig are found in
In the egg of bird, shell and shell membranes are
Onset of menstruation of human female is called
In mammals the chorion and the allantois together form