Topics:
Animal Refresher, Animal Reproduction
Secretions of Seminal Vesicles
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Question (English)
Prostaglandins, fructose & ascorbic acid are secreted by:
- Seminal vesicles ✓ Correct
- Prostate gland
- Cowper's gland (Bulbourethral gland)
- Epididymis
Explanation:
Correct Answer: Seminal vesicles
The seminal vesicles secrete prostaglandins, fructose, citric acid, ascorbic acid (Vitamin C), riboflavin, and other components. They contribute approximately 60% of total semen volume.
Functions of Seminal Vesicle Secretions
- Fructose: The primary energy source for spermatozoa motility — sperms undergo fructolysis for ATP production.
- Prostaglandins: Stimulate uterine contractions to aid sperm transport up the female reproductive tract.
- Ascorbic acid (Vitamin C): Antioxidant — protects sperm from oxidative damage.
- Citric acid: Osmotic regulation of seminal plasma.
Secretions of Other Accessory Glands
- Prostate: Alkaline fluid — neutralizes vaginal acidity; provides sperm motility and fertility factors.
- Bulbourethral (Cowper's) glands: Clear, mucus-like fluid — lubricates urethra before ejaculation, flushes residual urine.
- Ampullae (Stallion): Secrete ergothioneine.
Note
Seminal vesicles and bulbourethral glands are absent in the dog.
📚 About this Topic — Animal Refresher
This multiple choice question is from Animal Refresher, Animal Reproduction. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Refresher to strengthen your preparation.
