MEDICAL
NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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accessory (XI)
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trigeminal (V)
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vestibulocochlear (VIII)
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vagus (X)
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Detailed explanation-1: -The muscles innervated directly by the XI nerve are the trapezius and the sternocleidomastoid, in addition to the laryngeal musculature (in collaboration with the vagus nerve), such as the palatal, pharyngeal, laryngeal muscles.
Detailed explanation-2: -Cranial nerve X, the vagus, also forms part of the pharyngeal plexus, giving motor function to the soft palate and pharyngeal muscles.
Detailed explanation-3: -Answer and Explanation: The answer is c, spinal accessory nerve, also known as cranial nerve XI. The actions of shrugging the shoulders and turning the head can be performed by the upper fibers of the trapezius and the sternocleidomastoid muscles, respectively.
Detailed explanation-4: -Cranial nerve XI (eleven), also known as the spinal accessory nerve, controls the sternocleidomastoid and trapezius muscles: The sternocleidomastoid muscle helps turn your head and flexes your neck. The trapezius muscle manages shoulder movement, such as shrugging your shoulders.