Aug31 M3-Week 1 Review Flashcards
which enzyme makes testo into estrogen
aromatase
deficiency of 21-alpha hydroxylase causes what
congenital adrenal hyperplasia. 2 types
- early. classical, born with it, ambiguous genitalia from high androgen + salt wasting. dx at birth
- late onset. some enzyme fct. sx = acne, hirsutism, irregular cycles, virilization
hormones from post pit
oxytocin and vasopressin
in the endometrium, follicular phase is to the _______ what the luteal phase is to the secretory phase
proliferative
how sex steroids act (mech of action)
enhance transcription when bound to Rs
what stimulates the production of progesterone by the corpus luteum
LH
why pituitary hormone increases if the communication from the hypothalamus is severed
prolactin (bc dopamine of H inhibits prolactin of pit)
which hormone inhibits the secretion of FSH?
Inhibin
which hormone stims prod of FSH
activin (prod by ovary)
inhibin B specific effect and comes from where
- produced with estrogen
- diminishes FSH prod
name of undiff spermatogenic cells
spermatogonia
normal conc of spermatozoa in a sperm analysis
normal is above 15 million per mL
normal motility %
above 32%
% of sperms that should have a normal form
4%
male gametes: what cell undergoes meiotic division to give haploid cells
primary spermatocytes