Male Reproductive Flashcards
the testes produce ___
sperm
the testes secrete which hormones
testosterone, estradiol, AMH, inhibin B
the enzyme ______ converts testosterone to dihydrotestosterone
5 alpha reductase
testosterone is produced by the _____ cells of the testes
leydig
functions of testosterone
hair growth, sperm production, erectile function, prostate growth, muscle growth, increased sex drive, improved mood, confidence, memory function, maintenance of bone mass density
mechanism of action of testosterone
activated by 5 alpha reductase, binds to androgen receptor, goes to nucleus
role of estrogen in males
sperm health, combating osteoporosis, heart health
80% of the estradiol and 95% of the estrone in plasma are not directly from testes, but from _____
aromatase expressing organs
a small amount of estrogens are produced in the testes from the ___ and ___ cells
leydig, sertoli
AMH is produced by the ____ cells of the testes
sertoli
AMH expression is critical to ________ at a specific time during fetal development, which inhibits ______
sex differentiation, the development of the female reproductive tract in the male embryo
inhibin B is secreted from ___ cells of testes
sertoli
_____ stimulate inhibin production
androgens
inhibin b is a marker of _____
male infertility
serum inhibin b is significantly _____ in fertile men than infertile men
higher