AnS 214 SI Session 19
Alyona Avdonina
A. Male Reproductive functions.
1) Name the 3 functions of the male from a reproductive standpoint.
2) What sensory organ do males process to aid in the detection of female estrus?
What chemical signals does this organ detect? What is this response called?
B. Male Reproductive Anatomy
Fill in the diagram at right with the anatomy of the male reproductive system.
1) Name the 3 accessory glands found in bulls in the order that they are encountered by exiting semen.
2) What structure is found in the bull immediately prior to the fusion of the vas deferens to the urethra?
3) What two penile types are found in domestic animals?
What is the difference between them?
Give an example of species with each type.
Which of the structures in the diagram above are only found in species with the pictured penile morphology?
4) What are the crura?
5) In a relaxed male, what is the contractile status of the retractor penis muscle?
6) What are the 3 portions of the epididymis?
Which part is usually found furthest away from the body? Why?
What is unique about the testicular orientation of the boar as opposed to most other domestic species?
7) What provides external protection to the penis?
What internal subset of this structure covers the penis?
8) What is unique about the anatomy o f the boar's prepuce?
C. Penile anatomy.
1) What is unique about the penile structure of the ram?
What is the function of this organ?
What other species has a version of this structure?
2) What is unique about the penile structure of the boar?
What is the purpose of this type of penile morphology?
How many times will the boar's penis rotate to achieve this?
What other species has a rotating penis? How many times will it rotate?
D. Testicular Anatomy
Fill in the diagram at right.
1) What are the 4 main structures comprising the spermatic cord?
2) Name the 3 sections of the epididymis and their functions in sperm maturation. Use the Latin terminology.
______:
______:
______:
3) What is the site of sperm production?
4) What is the first tube spermatids enter?
5) What structure collects sperm from the seminiferous tubules?
6) What connective structure supports the rete testes?
In what species is this structure missing?
7) What structure transports sperm to the caput epididymis?
8) List in order the tubes trasporting sperm from their site of production to the outside of the males body.
9) What muscle type is found in the cremaster muscle?
What is the purpose of this structure?