Cranial Nerve X Vagus

The vagus nerve supplies parasympathetic fibers to the viscera of the chest and abdomen; motor fibers to the pharynx and larynx; and sensory fibers to the external ear canal, the meninges of the posterior cranial fossa, the pharynx, the larynx, and the viscera of the body cavities above the pelvis.

Figure 21-17 Right facial palsy.

Figure 21-18 Technique for evaluating the spinal accessory nerve.

Figure 21-19 Alternative technique for evaluating the spinal accessory

Figure 21-19 Alternative technique for evaluating the spinal accessory

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