Reproductive Cycle Flashcards
1
Q
3 fns of male reproductive system
A
- spermatogenesis
- sex act
- regulation of male reproduction function
2
Q
spermatogenesis
A
- the sertoli cells in the seminiferous tubule are where differentiation and meiosis of sperm cells occurs
- requires FSH and E
- LH required to push sperm into lumen
- T and E required for maturation of sperm
3
Q
FSH source, target, and action
A
- pituitary
- sertoli cells
- spermatogenesis
4
Q
LH source, target, and action
A
- pituitary
- Leydig cells
- androgen release
5
Q
GH source, target, and action
A
- pituitary
- many
- background metabolism
-if you have a GH deficiency, it may cause a decrease in sperm count
6
Q
Androgens source, target, and action
A
- testes
- many
- masculinization
7
Q
Androgenic effect
A
- hair pattern
- muscle distribution
- fat distribution
8
Q
T, Androsterone, Stanozolol
A
- T anabolic:androgenic = 1:1
- Andro anabolic:androgenic = 1:6
- Stanozolol anabolic:androgenic = 3-6:1
- if you want to bulk up, you want an anabolic effect –> stanozolol!
9
Q
male sex act
A
- arousal
- spinal reflexes
- parasympathetic (sacrospinal) control of erection, sympathetic (thoracolumbar) control of ejaculation
10
Q
Female follicles
A
- primary follicle –> forms due to FSH and LH
- once the primary follicle develops, the others go through programmed cell death called atresia
- roughly 20 follicles are lost per month
- secondary follicle (antrum forming) –> has external wall (stratum granulosum)
11
Q
ovarian phase
A
- follicular
- luteal (dominated by corpus luteum)
12
Q
what causes the release of FSH and LH from the hypothalamus?
A
- environmental influences
- psychological influences from higher brain
13
Q
Uterine phase
A
- proliferative (controlled by hormones, i.e. estrogen)
- secretory (i.e. progesterone)
14
Q
FSH effect on ovaries
A
- development of follicle
- production of estrogen
15
Q
LH effect on ovaries
A
- ovulation
- development of corpus luteum
- production of progesterone
16
Q
Lukron
A
-horrible drug used to induce menopause –> inhibits GNRH