lecture 17+18: male reproduction

Question 1

phases of spermatogenisis

Answer 1

1. mitotic division
2. meiotic division
3. cytodifferentiation -

Question 2

progression of sperm cells

Answer 2

1. spermatagonium
2. primary spermatocyte
3. secondary spermatocyte
4. spermatid
5. spermatozoa (sperm)

Question 3

movement of sperm

Answer 3

1. production in seminiferous tubules
2. movement to rete testis
3. movement to epidydimis for maturation
4. movement to vas deferens where they are stored
5. movement to ejaculatory duct
6. duct merges with urethra and then sperm exit the body.

Question 4

seminal vesicles secrete…

Answer 4

a mucoid sticky substance that:
- is alkaline
- contains fructose for energy
- contains prostaglandins - to cause contractions in female reproductive tract
- contains clotting proteins

Question 5

components of semen

Answer 5

10% sperm
30% prostatic fluid
60% seminal vesicle fluid
small amounts of other stuff

Question 6

benign prostatic hyperplasia

Answer 6

non-cancerous excessive growth of prostate causing the occlusion of urethra

Question 7

treatments of prostate growth

Answer 7

• surgery
• finasteride or dutasteride that cause prostate to stop growing or even shrink