Approximately what percentage of total semen volume is contributed by the **seminal vesicle**?
- 10%
- 30%
- 60%
- 90%
Show answer and solution
Correct answer: C. 60%
Seminal vesicles contribute about 60% of semen volume — alkaline fluid containing fructose (sperm energy), fibrinogen and prostaglandins.
Prostate adds ~30% (slightly acidic).
Cowper's gland adds a small alkaline lubricant.