| 单词 | Cranial Nerve,Eleventh |
| 释义 | Cranial Nerve,Eleventh《英文msh词典》Cranial Nerve,Eleventh [入口词] Cranial Nerve,Eleventh [主题词] Accessory Nerve [英文释义] The 11th cranial nerve. The accessory nerve originates from neurons in the medulla and in the cervical spinal cord. It has a cranial root,which joins the vagus (10th cranial) nerve and sends motor fibers to the muscles of the larynx,and a spinal root,which sends motor fibers to the trapezius and the sternocleidomastoid muscles. Damage to the nerve produces weakness in head rotation and shoulder elevation. |
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