Final Review: Male Reproductive Physiology Flashcards
During spermatogenesis, which cells are diploid?
Primary spermatocytes
During spermatogenesis, secondary spermatocytes and spermatids are _____ (diploid or haploid)?
Haploid
Excess cytoplasm is sloughed off during spermiogenesis and is known as?
Residual body
Where are sperm cells stored until ejaculation?
Epididymis
How long must sperm cells remain in the epididymis to gain motility?
18-24 hours
How long does it take for sperm to pass through the epididymis?
Several days
Where are the seminal vesicles located?
Behind the prostate
The seminal vesicles secrete mucoid material to?
Nourish the sperm
Seminal vesicle fluid makes up about _____% of the total volume of semen?
60%
What causes retro-peristaltic contractions of the uterus and makes the cervix more receptive to sperm?
Prostaglandins
What is formed by interstitial cells of leydig?
Testosterone
Testosterone cells are numerous in _____ males and _____ males after puberty.
Newborn.
Adult
After secretion, 97% of testosterone is lightly bound to _____ or tightly bound to _____.
Albumin
Beta globulin
What is the pathway of Gonadotropin-Releasing Hormone and what does it cause the release of?
Produced in hypothalamus
Carried to anterior pituitary
Causes release of LH & FSH
LH & FSH cause release of testosterone/estrogen
What nuclei are the GRH produced by in the hypothalamus?
Arcuate nuclei
