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Psychology Terms - Accessory nerve
One of two pairs of the eleventh cranial nerves, these motor nerves originate from both the lateral walls of the medulla oblongata and the cervical region of the spinal cord. They are categorized into cranial accessory nerves, which are distributed by the vagus nerve to the muscles of the larynx and pharynx, and spinal accessory nerves, which innervate muscles in the neck, shoulder, and upper back.
One of two pairs of the eleventh cranial nerves, these motor nerves originate from both the lateral walls of the medulla oblongata and the cervical region of the spinal cord. They are categorized into cranial accessory nerves, which are distributed by the vagus nerve to the muscles of the larynx and pharynx, and spinal accessory nerves, which innervate muscles in the neck, shoulder, and upper back.
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