phys- male reprod.

phys- male reprod. - *adrenal glands *appearance of adrenal...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
1. Where are the FSH receptors in the testes? *sertoli cells- make proteins for sperm (androgen-binding protein) 2. What does LH do in the testes? *located in leydig cells- produce hormones (testosterone) *testosterone is necessary for development of sperm 3. Why to men have estrogens? *because they have enzyme aromatase *estrogen can exert negative feedback, bone strength 4. What does inhibin do in males? *feedback to affect FSH-FSH increases sertoli- increases sperm 5. Where do testosterone and dihydrotestosterone exert their negative feedback effects? *testosterone?? *dihy= brain 6. What is the source of the androgens that cause Adrenarche?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: *adrenal glands *appearance of adrenal androgens dehydroepiandrosterone and adrostenedione (exert negative feedback on LH and FSH and therefore, testosterone) 7. What process initiates puberty in males? *increased pulsatile GnRH release into the Hypophysial portal vessels causing nocturnal pulses of LH and FSH **cholesterol is the beginning point for all steroid synthesis **all male sex hormones can be turned into female sex hormones-testosterone--aromatase--estradiol *LH stimulates cholesterol *FSH activates binding protein, activates genes of sperm, *early onset of puberty in both sex= adrenal gland ( low level)...
View Full Document

This note was uploaded on 04/07/2011 for the course PHYS 100 taught by Professor Balassare during the Fall '10 term at Saint Louis.

Ask a homework question - tutors are online