Male 2: Secondary sex organs Flashcards
1
Q
shared Functions of epididymis & Vas deferns
A
- where sperm aquires Motility & ability of fertilisation
- Increases the concentration of sperm 100 fold
- Storage of sperm for many days
2
Q
Seminal vesicle secretes ____ % of seminal fluid
A
60 %
Majority
3
Q
Seminal vesicle secretes ____ % of seminal fluid
A
30 %
4
Q
Substances secreted by Seminal vesicle
A
- Fructose
- Ascorbic acid
- Phsophorylcholine
- ergothionine
- flavins
- prostaglandins
- fibrinogen
Seminogelin
5
Q
Substances secreted by prostate
A
- Prostate specific antigen (PSA)
- Sprimine
- Citric acid
- acid phosphatase
- Phospholipids
- Fibrinolysin
- Fibrinogenase
6
Q
Function of PSA
A
hydrolysis semenogelin:
* Semenogelin aka Sperm motility inhibitor
* when hydrolysed, sperm becomes motile
7
Q
hormone required for normal prostatic development & Function
A
Oxytocin
8
Q
Nervous center for erection
A
Autonomic sacral S2,S3,S4
9
Q
Efferent fiber of erection, and its action
A
Pelvic splanchnic nerve (S2,3,4):
* Acetylcholine
* VIP
* NO –> cGMP –> Vasodilation of Deep arteries of penis
10
Q
what type of response is ejaculation
A
sympathetic response
11
Q
describe mechanism of ejaculation
A
- Contraction of Bulbocavernosus muscle
- Contraction of vas deferns:
- reflex –>internal pudendal Nerve
