Question:easy
Superior rectal vein drains into?
Superior rectal vein drains into?
Show Hint
The superior rectal vein is the portal limb of the anorectal anastomosis.
Updated On: Jun 24, 2026
- Inferior mesenteric vein
- External iliac vein
- Internal iliac vein
- Internal pudendal vein
Show Solution
The Correct Option is A
Solution and Explanation
Step 1: Think of the rectum as a meeting point of two venous systems - portal above and systemic below.
Step 2: The superior rectal vein represents the portal limb. It ascends and empties into the inferior mesenteric vein, which ultimately reaches the portal vein.
Step 3: The systemic limbs differ: the inferior rectal vein goes to the internal pudendal vein, and the middle rectal vein goes to the internal iliac vein. The external iliac vein is not involved in rectal drainage.
Step 4: Since the question concerns the superior rectal vein, its destination is the inferior mesenteric vein.
\[\boxed{\text{Inferior mesenteric vein}}\]
Step 2: The superior rectal vein represents the portal limb. It ascends and empties into the inferior mesenteric vein, which ultimately reaches the portal vein.
Step 3: The systemic limbs differ: the inferior rectal vein goes to the internal pudendal vein, and the middle rectal vein goes to the internal iliac vein. The external iliac vein is not involved in rectal drainage.
Step 4: Since the question concerns the superior rectal vein, its destination is the inferior mesenteric vein.
\[\boxed{\text{Inferior mesenteric vein}}\]
Was this answer helpful?
0
