**Question:** Nerve supply for adductor compartment of thigh is by

A. Sural nerve
B. Obturator nerve
C. Femoral nerve
D. Popliteal nerve

**Core Concept:**
The adductor compartment of the thigh is a region on the medial aspect of the thigh, containing the adductor muscles which are innervated by specific nerves. In this case, we need to identify the correct nerve supplying the adductor compartment.

**Why the Correct Answer is Right:**
The correct answer is B - Obturator nerve. The obturator nerve is a mixed nerve that originates from the L2-L4 spinal segments and supplies the adductor compartment of the thigh, innervating the adductor muscles.

**Why Each Wrong Option is Incorrect:**
A) Sural nerve: This nerve supplies the skin, muscles, and joints of the posterior lower leg, not the thigh.
C) Femoral nerve: This nerve supplies the muscles of the anterior thigh, not the adductor compartment.
D) Popliteal nerve: This nerve supplies the muscles of the posterior compartment of the thigh, not the adductor compartment.

**Clinical Pearl:**
Understanding the correct nerve supply for specific muscle groups is essential for understanding regional anatomy and surgical procedures involving the thigh.

**Correct Answer:** Obturator nerve (B)