PHYS: Menstrual Cycle Flashcards
Role of FSH in male
Stimulates sperm maturation in Sertoli cells of testes
Role of FSH in female
Stimulates follicular development and estrogen synthesis in ovaries
Role of LH in male
Stimulates testosterone synthesis in Leydig cells of testes
Role of LH in female
Stimulates ovulation, formation of corpus luteum, estrogen and progesterone synthesis in ovaries
Role of oxytocin in female.
Stimulates milk ejection from breasts and uterine contractions
Role of estradiol in female.
Stimulates growth and development of female reproductive system, follicular phase of menstrual cycle, development of breasts, prolactin secretion; maintains pregnancy
Role of progesterone in females.
Stimulates luteal phase of menstrual cycle; maintains pregnancy
Role of testosterone in males.
Stimulates spermatogenesis; stimulates male secondary sex characteristics
Role of hCG in females.
Stimulates estrogen and progesterone synthesis in corpus luteum of early pregnancy
Role of hPL in females.
Has growth hormone–like and prolactin-like actions during pregnancy
What types of hormones are secreted by the pituitary gland?
peptide ONLY
What types of hormones are secreted by the CL?
steroids ONLY (estradiol and progesterone)
What types of hormones are secreted by the placenta?
strange: peptides (hCG and hPL) and steroids (estriol and progesterone)
What is the main role of the CL?
to maintain early pregnancy (trophoblastic tissue)
When does the placenta “take over” for CL?
around 10-12 weeks
