Female Reproductive Physiology ML:3 Flashcards
What happens during the mentrual phase
-decreased estrogen and progesterone cause the release of prostaglandins which cause vasoconstriction of the uterine blood vessel, dilation, and hemorrhage
-endometrium dies and exits the body
What happens during the proliferative phase?
-increased estrogen
-increased growth of epithelial cells, gland and blood vessels of endometrium and myometrium
-estrong priming: increased # of progetsrone receptors
What happens during the secretory ohase
-increased progesterone
-endo/myo thickened further
-increased vascularization
- becomes filled with stored glycogen, fatty acids and nutrients
E and P will cause what in the endometrium
E: proliferation
P: secretory
E and P will cause what in the myometrium
E: increased growth and contractility
P: low contractility
E and P will cause what in the cillia/fimbriae
E: high activity
p: low activity
E and P will cause what in the cervical mucus
E: thin. watery
P: viscous, little
E and P will cause what with the follicle
e: increased development
p: little developemnt
At puberty what are the 5 things gonadal steroid will do?
- stops bone growth
- development of breasts/genitalia
- apparenace of axillay and public hair
- pelvic widening
- female fat distribution
What are other roles of gonadal steroids
-protects against osteoporosis
-smooth skin
-vascular effects
-protection from atherosclerosis
When does fertilization occur
fertilization of secondary oocyte within 24-48 hours of ovulation
When does implantation occur
6-10 days post fertilization, days 20-24 of menstrual cycle
What must happen to estrogen and progesterone once fertilization occurs
levels must stay high to prevent degradatin of uterine lining
What is hCG
secreted by the developing embryo and is the basis of pregnancy tests
- turns on testosterone production in male fetus testes
