Cremasteric Reflex Efferent — FRCA Primary MCQ

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HardAnatomyCremasteric Reflex EfferentFRCA Primary

The genitofemoral nerve (L1-L2) provides the afferent limb of the cremasteric reflex. The efferent limb travels via which nerve?

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Correct answer: E — Genital branch of the genitofemoral nerve

The cremasteric reflex: stroking the medial thigh (afferent: femoral branch of the genitofemoral nerve or ilioinguinal nerve L1-L2) causes cremasteric muscle contraction and testicular elevation (efferent: genital branch of the genitofemoral nerve L1-L2). This is a superficial reflex mediated at the L1-L2 spinal level.

Reference: RCoA 2021 Primary FRCA Curriculum