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Repro quiz 1

Terms in this set (10)

In 1677, Anthony van Leeuwenhoek described spermatozoa. What was instrumental for this to occur
Microscope
Name the tubule/ ductile that transports spermatozoa from the testis into the epididymis
Efferent tubules
Indicate 2 roles of the epididymis
Nourishment
Maintenance
See graph from question 4
A. GnRH+
B. Luteinizing hormone +
C. Follicle stimulating hormone +
D. Testosterone -
E. Inhibin -
Describe spermatogenic cycle and spermatogenic wave
Cycle- the time it takes for the sperm to get to the same phase ( A1 to A1)
Wave- distance in the lumen from one state to another
At the time of ejaculation, have spermatozoa undergone a) meiosis and b) capacitation?
A. Yes
B. No
Identify/ describe the developmental stages/ steps involved in spermatogenesis.
A0
A1
A3
A4
I
B
1* spermatocyte
2* spermatocyte
- A0 to B is mitotic division
- 1 and 2 spermatocyte is meiosis. Then differentiation occurs and goes from round spermatid to elongated spermatid to spermatozoa
If you castrate a male, would you expect Luteinizing hormone to increase or decrease and why
Increase bc there will be no testosterone to give a negative feedback to stop producing LH
What is the role for the Golgi apparatus within the differentiating spermatid
Forms the acrosome around the sperm head
Contractions of the uterus are important to facilitate movement of the male germ cells through the female reproductive tract. Is the oviduct also a contractile organ?
Yes
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