A 42-year-old woman presents to the emergency department after being hit by a car while cycling. She complains of pain in the medial aspect of the right groin. Physical examination reveals weakness in the adductor muscles of the right hip. Strengths of other hip muscles were normal. Based on these symptoms, which nerve may be injured?Group of answer choicesOculomotor nerveAccessory nerveObturator nerveTrochlear nerveTrigeminal nerve
Question
A 42-year-old woman presents to the emergency department after being hit by a car while cycling. She complains of pain in the medial aspect of the right groin. Physical examination reveals weakness in the adductor muscles of the right hip. Strengths of other hip muscles were normal. Based on these symptoms, which nerve may be injured?Group of answer choicesOculomotor nerveAccessory nerveObturator nerveTrochlear nerveTrigeminal nerve
Solution
The nerve that may be injured based on these symptoms is the Obturator nerve. This nerve innervates the adductor muscles of the hip, which are responsible for bringing the legs together (adduction). Damage to this nerve can result in weakness or loss of ability to adduct the hip, which aligns with the symptoms described. The other nerves listed (Oculomotor, Accessory, Trochlear, and Trigeminal) are primarily associated with functions in the head and neck, not the hip.
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