BY 108 Chapter Notes - Chapter 23: Corpus Luteum, Secondary Sex Characteristic, Fallopian Tube
Document Summary
Female reproductive system - ovaries develop more slowly than testes. Clitoris/labia majora made from same embryonic structures as penis/scrotum in males. Granulosa cells secrete estrogen to start menstrual cycle and development of female secondary sexual characteristics at puberty. Progesterone - hormone that maintains the accessory sex organs (fallopian tubes, uterus, vagina) female accessory organs - fallopian tubes (uterine tubes, oviducts) - transport ova from ovaries to uterus. Cervix - neck of the uterus, leads to vagina. Endometrium - lining of uterus, shed during menstruation menstrual/estrous cycles - females born w/ 1 million follicles (each w/ ovum) Primary oocytes - ova halts in prophase i. Menstrual cycle - lasts about a month, follicular/luteal phase separated by ovulation follicular phase - follicles stimulated to grow. Primary oocyte creates secondary oocyte and polar body. Secondary oocyte halts in metaphase ii, won"t continue until fertilization. Proliferative phase - from end of menstruation to beginning of ovulation. Oocyte disintegrates within a day if not fertilized.
