Male + Female Reproductive Flashcards
(46 cards)
What is androgen
Male sex hormone
What do Sertoli cells do
sperm production (spermatogenesis)
What does androgen cause?
development of embryonic glands which lead to development of testes which product testosterone
What does GnRH stand for
Gonadotropic releasing hormone
What does inhibin inhibit?
The anterior pituitary which produces FSH and the hypothalamus
What is a primery SC
it plays direct role in repoduction
Male Primary S.C.
Testes, scrotum, epididymis, ductus deferens, penis, seminal vesicles, prostate, cowpers
Explain negative feedback loop for testosterone production
- LH affects the interstitial cells which produce testosterone. There fore LH increases testosterone production
- The production of testosterone directly inhibits the production of LH
- COnstant testosterone production
What cells does FSH affect
Sertoli cells and seminiferous tubules
Male secondary SC
facial hair, body hair, low voice, narrow hips, muscle development
What does testosterone inhibit?
The anterior which produces LH and the hypothalamus
What does FSH mean
follicle stimulating hormone
Parts of sperm and specifics
Head - 23 chromosomes
Acrosomes - enzymes to penetrate egg
Body/midpiece - mitochondria
Tail
What does LH mean
luteninzing hormone
What cells does LH affect
interstitial cells
What does the production of testosterone stimulate in puberty?
Sex organs and secondary sex characteristics
Production of seminal fluid
Seminal Vesicle
-musouc with fructose
Prostate + Cowpers
-muscous that is alkaline, counteracts acidic vagina
Steps of sperm release
- sperm travels from epididymis to ductus deferens,
- from ductus deferens it connect with urethra at the ejaculatory duct
the sperm is expelled via muscle contractions and is carried din seminal fluid
Where is androgen triggered
on XY fetus
Parts of penis and specifics
- shaft: main section
-glans: head
-foreskin: protects
-urethra: urine + sperm
What is secondary SC?
plays an indirect role, unique to male or female
What happens during puberty specifically relating to hormones in the body?
- The hypothalamus increases production of GnRH
- This releasing hormone signal anterior pituitary to product FSH and LH
- Both FSH and LH stimulate the testes meaning they increase/start sperm and testosterone production
What do interstitial cells do
product testosterone
How does erection work?
- blood flows to spongy erectile tissue in penis
- This cause the erectile tissue to expand
- this expansion compressed blood veins trapping blood in penis