repro 5 Flashcards
(40 cards)
FSH acts on which type of cells in the testes?
Leydig cells
Sertoli cells
Spermatogonium
Spermatocytes
Sertoli cells
what causes the spike in FSH and LH at the end of the menstrual cycle
degeneration of corpus luteum so its not secreting hormones anymore
what transform into luteal cells
thecal and granular cells
what causes the transition of granular cells and thecal into luteal
LH surge
what hormones does the corpus luteum secrete
estrogen
progesterone
what do estrogen and progesterone provide negative feedback to
hypothalamus
anterior pituitary
what does progesterone do to discharge
thickens it
whats the lifespan of corpus luteum
~12 days
what happens to corpus luteum if fertilization does not occur
spontaneous apoptosis
what is the dead corpus luteum
corpus albicans
what does the maintenance of endometrium depend on
progesterone produced by corpus luteum
what is the breakdown of whats lost on a women’s period
40ml blood
35ml serous fluid
cell debris
when progesterone and estrogen fall, FSH and LH _________
increase
what is involved in breast development and pattern of fat in women
estrogen
what is involved in pubic and armpit hair, and libido in women
androgens
what are androgens produced by
adrenal cortex
does parasympathetic activity or sympathetic activity cause an erection
parasympathetic (vasodialation)
how is nitric oxide produced
Ash released from parasympathetic nerves bind the muscarinic ACh receptors on endothelial cells in the lumen of penis arterioles
where does nitric oxide go
into smooth muscle
what does nitric oxide on smooth muscles cells do
causes relaxation of vascular smooth muscle
The primary hormone produced by follicles during the follicular stage of the menstrual cycle is
LH
FSH
Progesterone
Estrogen
Estrogen
what are the 2 processes of an orgasm in males
emission
ejaculation
what is emission controlled by
sympathetic nervous system
what is emission
movement of sperm out of the vas deferens and into the urethra