Contents of spermatic cord are all EXCEPT:
**Core Concept**
The spermatic cord is a vital anatomical structure that connects the testes to the abdominal cavity, playing a crucial role in the reproductive system. It contains various vital structures that enable the transport of sperm and blood to and from the testes.
**Why the Correct Answer is Right**
The spermatic cord contains three main structures: the spermatic artery, which supplies oxygenated blood to the testes; the pampiniform plexus, a network of veins that drains deoxygenated blood from the testes; and the vas deferens, a muscular tube that transports sperm from the testes to the prostate gland. These structures are essential for the proper functioning of the reproductive system.
**Why Each Wrong Option is Incorrect**
* **Option A:** The cremaster muscle is a smooth muscle that surrounds the spermatic cord, regulating the temperature of the testes. It is indeed a content of the spermatic cord.
* **Option B:** The testicular arteries and veins are the main blood vessels that supply oxygenated blood and drain deoxygenated blood from the testes, respectively. However, they are not contained within the spermatic cord itself but rather are external to it.
* **Option C:** The vas deferens is a content of the spermatic cord, responsible for transporting sperm from the testes to the prostate gland.
**Clinical Pearl / High-Yield Fact**
It is essential to note that the spermatic cord contains the pampiniform plexus, which can become varicose and lead to conditions such as varicocele, a common cause of infertility in men.
**Correct Answer: B. Testicular arteries and veins.**