Question

which nerve of the lumbar plexus innervates the adductor muscles of the hip, gracilis muscle, and skin over the medial surface of the thigh? answer femoral nerve obturator nerve iliohypogastric nerve genitofemoral nerve i dont know yet

Explanation:

• Femoral nerve: Innervates anterior thigh muscles (e.g., quadriceps), not adductor muscles.
• Obturator nerve: Originates from the lumbar plexus. It innervates the adductor muscles of the hip (e.g., adductor longus, brevis, magnus), the gracilis muscle, and provides sensory innervation to the skin over the medial surface of the thigh.
• Iliohypogastric nerve: Supplies skin of the suprapubic region and external oblique muscle, not relevant to the structures in question.
• Genitofemoral nerve: Has genital (supplies cremaster muscle in males) and femoral branches (supplies skin of femoral triangle), not the target muscles/skin area here.

Answer:

Obturator nerve