
The accessory nerve is a cranial nerve that controls the sternocleidomastoid and trapezius muscles. As part of it was formerly believed to originate in the brain, it is considered the eleventh of twelve cranial nerves, or simply cranial nerve XI. Traditional descriptions of the accessory nerve divide it into two parts: a spinal part and a cranial ...
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http://en.wikipedia.org/wiki/Accessory_nerve

Hypoglossal nerve, cervical plexus, and their branches The eleventh cranial nerve. The accessory nerve is purely a motor nerve and differs from the other cranial nerves in that only a small part of it originates from the brain; most of the nerve comes from the spinal cord. The cranial part of...
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<anatomy, nerve> The accessory nerve enervates the sternocleidomastoid muscles and the trapezius muscles. ... Lesions of the eleventh result in drooping of the shoulder and inability to rotate the head away from the affected side. ... Synonym: cranial nerve XI. ... (27 Sep 1997) ...
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the eleventh cranial nerve (called also spinal accessory nerve); it originates in the medulla oblongata and provides motion for the sternocleidomastoid and trapezius muscles of the neck.
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The 11th cranial nerve which serves the neck muscles.
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Accessory nerve: The eleventh cranial nerve, which emerges from the skull and receives an additional (accessory) root from the upper part of the spinal cord. It supplies the sternocleidomastoid and trapezius muscles. The sternocleidomastoid muscle is in the front of the neck and turns the head. The trapezius muscle moves the scapula (the wingbone),...
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The accessory nerve is a pair of cranial nerves responsible for the sternomastoid and trapezius muscles.
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[
n] - arises from two sets of roots (cranial and spinal) that unite to form the accessory nerve trunk
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The eleventh cranial nerve; it carries motor output to constrict the neck muscles.
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spinal accessory noun arises from two sets of roots (cranial and spinal) that unite to form the nerve
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either one of the eleventh pair of cranial nerves, consisting of motor fibers from the spinal cord that innervate the pharyngeal, trapezius, and sternocleidomastoid muscles, and motor fibers from the brain that join the vagus to innervate the thoracic and abdominal viscera. Also called
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