Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
The Normal Menstrual Cycle Endometrium The endometrium undergoes histologic and cytologic changes that culminate with menstrual bleeding when the corpus luteum ceases to secrete progesterone ( Fig. 218-1 ). The basal layer of the endometrium then regenerates the superficial layer…
Definition The ovaries or female gonads episodically release female gametes (oocytes or eggs) and secrete sex steroid hormones, principally estradiol and progesterone but also various androgens. Oocytes are released only during the adult reproductive years, when the secretion of sex…