Flashcards in RED ARROWS (Robia) & UNDERLINED (Ozark) Deck (79)
Meiosis II of ovum is completed at
Spermatogenesis results in how many germ cells
Oogenesis restults in how many germ cells
Normal sperm production requires
What receptor (and where) is upregulated in pregnancy promote cause GERD?
B-receptors on LES
What steroid hormone peaks during labor, and promotes partuition?
What is progesterone's role during pregnancy?
maintains uterine quiescence and sustains fetus
What is estrogen's role during pregnancy?
Promotes partuition, increases sensitivity to OXY
Ovary development depends on presence of
2x and no y
loss of one x results in
ovarian dysgenesis but no lose of female ducts or genitalia (turners)
How is it possible to have XX male and XY female?
presence or absence of XY, respectively
What promotes relaxin? What does it do?
hCG promotes relaxin. It relaxes the pelvic bones (looser)...
XY without SRY looks like
When male hormones are absent, default is
female genital tract, external genitals
What blocks 5-alpha reductase?
Seminifereous tubule dysgenesis disease
What causes male pseudohermaphroditism
Main cause of congenital adrenal hyperplasia
21 hydroxylase deficiency
21 hydroxylase deficiency main cause of
Lack cortisol/aldosterone. Main cause
CAH - 21 hydroxylase deficiency
COME BACK TO THIS
clitoromegaly....retention of urogenital sinus and fusion of labia...these features are exhibited in
female pseudohermaphroditism ... virilization by androgens....
T to E2
T to DHT
5-alpha hydroxylase (blocked by propecia, finesteride)
Male pattern baldness caused by
What is the function of the intercellular bridges between secondary spermatocytes?
Synchronizes development, sharing resources...large enough to pass organelles by MT's
What's an acrosome?
A cap of membrane containing digestive enzymes
Continuous exposure (not pulsatile) of GnRH
inhibitory FSH and LH release