Source
Corpus luteum, placenta, adrenal cortex, testes
Function
1) stimulates endometrial glandular secretion and spiral artery development
2) maintains preg (reduce myometrial excitability)
3) produces thick cervical mucus to inhibit sperm entry
4) increase body temp
5) inhibits gonadotropins (LH, FSH)
6) uterine smooth muscle relaxation (prevent contraction)
7) reduce estrogen receptor expressivity
Progesterone level indicative
Elevation of progesterone is indicative of ovulation.
“Progesterone is PRO-GESTation”