Male Reproductive Flashcards
1
Q
Scrotum
A
- Skin and fascia around testes
- For temperature regulation
- Smooth muscle can pull testes up to the body when it is cold
2
Q
Testes
A
- Leydig cells produce testosterone
- Site of sperm production
- Contain seminiferous tubules where sperm are made
3
Q
Parts of a Sperm
A
- Motile tail
- DNA head
- Acrosome cap of digestive enzymes
- Mitochondria in midsection for energy
4
Q
Seminiferous Tubules
A
- Contain germ cells for sperm production
- Sustentacular/Sertoli cells support the germ cells
5
Q
Sertoli Cell
A
- Forms the blood-testis barrier
- Assists sperm production by phagocytizing defective sperm
- Secrete seminiferous fluid
- Aid Leydig cells in T production
- Secrete inhibin to inhibit FSH
6
Q
Epididymis
A
- Site of sperm maturation over 20 days
7
Q
Vas Defrens
A
- Store and transport semen
8
Q
Seminal Vesicle
A
- Fructose
- Alkali to neutralize vaginal acid
- Substances for sperm motility
- Prostaglandins to stimulate vaginal contraction
- Clotting factors to clump sperm together and provide inertia
9
Q
Prostate Gland
A
- Alkali
- Prostaglandins
- Enzymes to clot and the liquefy semen
10
Q
Bulbourethral Gland
A
- Mucus for lubrication and acid neutralization
11
Q
Male vs. Female Sperm
A
- Male are lighter, faster, more fragile. They die faster and conceive if they are deposited close to ovulation
- Female are heavier, slower, and hardier. They live 2-3 days and conceive if deposited a few days from ovulation
