3.24.25 lecture: male gonads

what triggers the creation of male repro structures

the surge of testosterone in utero

what's man menopause called?

andropause

what is andropause?

age related decline in circulating testosterone

What is a physical manifestation of andropause?

belly

True/false: Testosterone stimulates the production of red blood cells

true! Men have slightly elevated RBCs compared to women

In men, FSH targets the _________________ to promote the release of ______________________

seminiferous tubules; androgen binding protein

What does androgen binding protein do?

it binds testosterone to keep it available to stimulate sperm production

in men, LH targets the __________________

interstitial cells

what do interstitial cells do?

they actually produce the testosterone

testosterone is under __________________ feedback control

negative

what impact does testosterone level have on men's moods?

the decline of testosterone causes men to become more emotional

GnRH is secreted by the hypothalamus, stimulating the release of FSH and LH from the anterior pituitary, then in the testes, FSH will promote ____ to make sure there's a ready supply of __________ in the testes, then LH will stimulate the ________ cells to produce testosterone

ABP; androgen; interstitial

what are the emotional effects of declining testosterone levels

they become more aggressive

with male and female sex hormones are regulated through the _________________, which is under _____________ feedback control except during ______________

APG axis; negative; ovulation