Biology 30 - Male reproductive system Flashcards
1
Q
Androgens
A
- Male sex hormone
- Gets triggered by a gene carried by the Y chromosome
2
Q
Testosterone
A
- Produced by the interstitial cells in the testes
- Negative feedback onto the hypothalamus and the anterior pituitary gland which lowers the production of LH & FSH
- Stimulated process of spermatogenesis in the seminiferous tubules
3
Q
LH
A
- Stimulates production of testosterone in the interstitial cells
4
Q
FSH
A
- Stimulates production of sperm in the seminiferous tubules
- Stimulates production of inhibin by the Sertoli cells
5
Q
Scrotum
A
- Sac of elastic skin that holds the testes
- Can contract or relax to adjust for optimal temperature for sperm production
6
Q
Spermatogenesis
A
- Sperm production
- Happening in the seminiferous tubules
7
Q
Epididymis
A
- Housing unit for sperm in the process of maturation
8
Q
Sertoli cells
A
- Supports and nourishes sperm
9
Q
Acrosome
A
- Contains enzymes to help penetrate the barrier of the egg cells
10
Q
Vas deferens
A
- Carries sperm from the epididymis to the urethra via the ejaculatory duct during sexual arousal
11
Q
What are the 3 glands that make up the fluid portion of semen?
A
- Cowper’s gland
- Prostate gland
- Seminal vesicles
12
Q
Cowper’s gland
A
(Cleanses)
- Clear alkaline mucus
- Released before ejaculation
- Cleans and lubricates the urethra
13
Q
Prostate gland
A
(Protects)
- Milky white alkaline mucus
- Protects sperm from the acidic environment of the vagina
14
Q
Seminal vesicles
A
(Sugars)
- Secretes fructose (Sperm food)
- Secretes prostaglandins (Stimulates uterine contractions after ejaculation)
- 60% of total semen volume
15
Q
What system is an erection and ejaculation a part of?
A
- Autonomic nervous system
