**Question:** Adductor tubercle gives attachment to?

**Core Concept:** The adductor tubercle is a bony prominence located on the medial surface of the thigh, near the groin. It plays a role in the attachment of adductor muscles to the femur.

**Why the Correct Answer is Right:** The adductor tubercle provides an attachment site for muscles belonging to the adductor group, which are responsible for adduction of the thigh and knee flexion. The correct answer, D, refers to the adductor tubercle's attachment to the adductor magnus muscle.

**Why Each Wrong Option is Incorrect:**

A. N/A - This answer is not relevant to the adductor tubercle and its function.
B. The adductor tubercle does not attach to the obturator externus muscle.
C. The adductor tubercle is not involved in the attachment of the gracilis muscle.

**Clinical Pearl / High-Yield Fact:** The adductor tubercle is a crucial landmark for surgeons and orthopedic specialists during surgical procedures involving the hip joint, as it helps guide the placement of prosthetic implants and ensures proper function of the adductor muscles post-surgery.

**Correct Answer:** D. Adductor tubercle attaches to the adductor magnus muscle.