menstruation occurs in response to cessation of progesterone. (Men Prefer)
Phases of menstrual cycle
Men Prefer Lustful Sex
Menstruation, Proliferative phase, Luteal/Secretory phase.
Proliferative phase: klmnOPqrs
Oestrogen causes growth of glands and arterioles with thickening of the endometrium.
Secretory phase
Ostrogen and progesterone causes causes endometrium to become vascular...
PRO = O
SEC = O+P
M K RAHMAN
