After the division of testicular vein for treatment of varicose vein, venous drainage of testes is by ?
**Core Concept**
The testicular veins drain the testes into the inferior vena cava, but due to their unique anatomy, they have a different drainage pathway compared to other abdominal organs. The testicular veins drain into the renal veins, which then drain into the inferior vena cava. This is a critical anatomical fact that is essential for understanding the venous drainage of the testes.
**Why the Correct Answer is Right**
After the division of the testicular vein, the venous drainage of the testes is maintained through the pampiniform plexus, which is a network of small veins that surround the testicular artery. The pampiniform plexus drains into the vesical plexus, which then drains into the internal iliac vein. The internal iliac vein then drains into the common iliac vein, and finally, into the inferior vena cava. This collateral pathway ensures that the testes continue to receive adequate venous drainage despite the division of the testicular vein.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the ovarian vein, not the ovarian artery, drains into the inferior vena cava.
* **Option B:** This option is incorrect because the lymphatic drainage of the testes is primarily through the lumbar lymph nodes, not the venous drainage.
* **Option C:** This option is incorrect because the inferior mesenteric vein primarily drains the small intestine, not the testes.
**Clinical Pearl / High-Yield Fact**
The pampiniform plexus is a critical structure in the venous drainage of the testes, and its integrity is essential for maintaining normal testicular function. Damage to this structure can lead to testicular atrophy and infertility.
**Correct Answer:** C. The pampiniform plexus.