Main function of Vas deferens is-
**Core Concept**
The vas deferens is a muscular tube that plays a crucial role in the male reproductive system, specifically in the process of ejaculation. It is a continuation of the epididymis and connects it to the prostate gland and seminal vesicles.
**Why the Correct Answer is Right**
The main function of the vas deferens is to store and transport sperm from the epididymis to the prostate gland and seminal vesicles, where it mixes with seminal fluid to form semen. The vas deferens contracts and relaxes in a coordinated manner with the seminal vesicles and prostate gland to facilitate ejaculation. This process is regulated by the autonomic nervous system, specifically the sympathetic nervous system.
**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because the vas deferens is not primarily responsible for producing or storing seminal fluid.
**Option B:** Incorrect because while the vas deferens does contain smooth muscle, its primary function is not to regulate blood pressure.
**Option C:** Incorrect because the vas deferens is not directly involved in the formation of the prostate gland.
**Clinical Pearl / High-Yield Fact**
It's essential to remember that vasectomy, a common surgical procedure, involves cutting or blocking the vas deferens to prevent sperm from entering the semen, thus preventing pregnancy.
**Correct Answer:** C. Storage and transportation of sperm