Male Reproductive Anatomy of Cattle
Name:
Hour
Date Assignment is due:
C. Kohn, Waterford WI
Date:
Score: + ✓ -
Why late?
Day of Week
Date
If your project was late, describe why
Wrap-up Score: + ✓ -
Directions: Use the accompanying PowerPoint (http://bit.ly/male-repro-ppt) to complete this sheet. This sheet will be
due upon the completion of the PowerPoint in class. These assignments are graded on a +/√/- scale.
1. What are the two main parts of the male reproductive tract and their components?
1
2
2. What are the two functions of the testicles?
1
2
3. What are the seminiferous tubules?
4. What is the main purpose of the Sertoli cells?
5. Fill in the blanks in the image below:
Page | 1
Copyright 2010 by Craig Kohn, Agricultural Sciences, Waterford WI. This source may be freely used and distributed provided the author is cited.
6. What is the function of the Blood Testis Barrier?
7. Why would the body try to destroy sperm cells?
8. What is the function of the Leydig cells?
9. What are the three functions of the male hormones?
1
2
3
10. Fill in the blanks
1.
2.
4.
5.
1
3.
11. What would happen to sperm production if a bull received
artificial injections of testosterone?
12. What is the function of the cremaster?
2
4
a. Why is this function necessary?
Page | 2
Copyright 2010 by Craig Kohn, Agricultural Sciences, Waterford WI. This source may be freely used and distributed provided the author is cited.
3
5
13. What is cryptorchidism?
14. What are three other causes of sterility besides this?
15. How soon would you know if the damage from these occurrences was temporary or permanent?
16. Write the path of sperm from Sertoli cell to ejaculation:
17. What role does the epididymis play in semen formation?
18. What role does the vas deferens play in ejaculation?
19. What activity occurs in the Ampullae of Henle?
20. Semen is the mix of
21. In one or a couple words, describe the primary contribution of each of the following glands:
Seminal Vesicles:
Prostate:
Cowper’s
22. What might yellowed, cloudy semen indicate?
Page | 3
Copyright 2010 by Craig Kohn, Agricultural Sciences, Waterford WI. This source may be freely used and distributed provided the author is cited.
23. What are endocrine disrupting chemicals?
24. Name five causes of injury to sperm cells:
25. Which is better for a bull – infrequent ejaculation, or multiple ejaculations per day?
a. Why?
26. How long may it take for the symptoms of infertility to show?
27. How long does it take to mature a sperm cell?
28. How long does it take sperm to travel through the epididymis?
29. How many sperm per week should a bull produce?
1
30. Fill in the blanks
2
1.
2.
3
4
3.
4.
5
5.
6.
7.
6
Page | 4
Copyright 2010 by Craig Kohn, Agricultural Sciences, Waterford WI. This source may be freely used and distributed provided the author is cited.
7
Unit Wrap-up
C. Kohn, Agricultural Sciences - Waterford WI
Name:
Hour
Date Assignment is due: Thursday
Day of Week
Date:
Score: + ✓ -
Why late?
Date
If your project was late, describe why
1. Write the 3 topics that you found least easy to understand in this unit:
1_
2_
3_
2. What are the 5 things you most need to review before taking your next
quiz?
1_
2_
3
4_
5_
3. Create 3 high-level questions related to this material:
1_
2_
3_
4. List 6 vocabulary words that you did not know before or have almost never used before:
1_
2
3
4
5
6
5. What is a specific strategy that you have for remembering a specific item from this unit?
_
A strategy is a mnemonic, rhyme, analogy, or other brain-based strategy. It is not an activity such as reviewing your notes, making cards, studying hard, etc.
Page | 5
Copyright 2010 by Craig Kohn, Agricultural Sciences, Waterford WI. This source may be freely used and distributed provided the author is cited.