Epididymis and Semen Review Quiz

 

1. The head of a human sperm contains the (indicate all that apply)
acrosome.
nucleus.
laminated columns.
mitochondria.
course outer fibers.
fiborus sheath.
axoneme.
2. The midpiece of a human sperm contains the (indicate all that apply)
acrosome.
nucleus.
laminated columns.
mitochondria.
course outer fibers.
fiborus sheath.
axoneme.
3. The principle piece of a human sperm contains the (indicate all that apply)
acrosome.
nucleus.
laminated columns.
mitochondria.
course outer fibers.
fiborus sheath.
axoneme.
4. Which of the following enzymes are located in the acrosome. (select all that apply)
Protein Kinase A
Acrosin
Hyaluronidase
Protein Kinase C
5. Indicate which of the following are in the axoneme. (select all that apply)
central pair of microtubules
9 doublet microtubules
nine course outer fibers
fibrous sheath
mitochondria
6. The cleaving of ATP by dynein is involved in the sliding of microtubules in the axonene.
True
False
7. Which of the following would occur if sperm were incubated in a medium whose only metabolic substrate was fructose and an inhibitor of glycolysis was added.
There would be no effect and sperm would be motile.
Sperm motility would be inhibited.
8. Indicate the portions of the male reproductive tract which have bulk fluid flow as a major mechanism of sperm transport.
seminiferous tubules
rete testis
vas efferentia
caput epididymis
corpus epididymis
cauda epididymis
vas deferens
urethra
9. Indicate the portions of the male reproductive tract which have contracts as part of the mechanism of sperm transport.
seminiferous tubules
rete testis
vas efferentia
caput epididymis
corpus epididymis
cauda epididymis
vas deferens
urethra
10. The male reproductive tract is dependent on androgens for continued function. The type and source of those androgens for the caput epididymis is
tubal testosterone
vascular testosterone
tubal dihydrotestosterone
vascular dihydrotestosterone
11. The male reproductive tract is dependent on androgens for continued function. The type and source of those androgens for the corpus epididymis is
tubal testosterone
vascular testosterone
tubal dihydrotestosterone
vascular dihydrotestosterone
12. The male reproductive tract is dependent on androgens for continued function. The type and source of those androgens for the cauda epididymis is
tubal testosterone
vascular testosterone
tubal dihydrotestosterone
vascular dihydrotestosterone
13. The role of the parasympathetic nervous system is to
Inhibit vasoconstriction
stimulate relaxation of the retractor penis muscle
stimulate contaction of the ischiocavernosus muslce.
stimulate contraction of the pelvic urethral muscle
14. Emission involves the parasympathetic nervous system but ejaculation involves the sympathetic nervous system.
True
False
15. Which of the following would be a typical volume for a bull ejaculate?
1 ml
8 ml
80 ml
200 ml
16. Which of the following would be a typical concentration in a ram ejaculate?
150 million sperm/ml
250 million sperm/ml
1500 million sperm/ml
3000 million sperm/ml
17. It would not be unusual to observe 50% normal sperm in a stallion ejaculate.
True
False
18. An initial semen evaluation should include an evaluation of semen color, volume, concentration, motility, viability and morphology.
True
False
19. In order to generate ATP from metabolism of glucose, sperm must have oxygen in the medium and use respiration (also called Tricarboxcylic Acid cycle or Kreb's cycle).
True
False