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Motor Supply H&N

Summary to the motor supply of the head and neck

QuestionAnswer
All extraocular muscles, including the levator palpebrae superioris are supplied by the ____ nerve, except for the ___ ___ and the ___ ___, which are supplied by ___ and ___ occulomotor nerve (CN III); superior oblique and the lateral rectus; CN IV and CN VI
All muscles of the palate are supplied by the ____ nerve EXCEPT the ___ ____, which is supplied by ___. vagus (CN X); tensor veli palatini; V3
All pharyngeal muscles are supplied by the vagus nerve EXCEPT the _____, which is supplied by the ___ nerve. stylopharyngeus; glossopharyngeal
All intrinsic and extrinsic muscles of the tongue are supplied by the ___ nerve EXCEPT for the ____, which is supplied by the ___. hypoglossal CN XII; palatoglossus; CN X
All muscles of facial expression, including the epicranius (occipitofrontalis), buccinator, and platysma, are supplied by ____; in addition, this nerve supplies the ____, ____, and the ____ muscles. Facial nerve CN VII; stapedius, posterior belly of the digastric, and stylohyoid muscle
All __ muscles of mastication are supplied by the ____ nerve, which supplies the ____, the ____, and the ___. 4; 2 tensors (veli palatini and tympani), the anterior belly of digastric, and the mylohyoid
All intrinsic muscles of the larynx are supplied by the ____ nerve (branch of ___), EXCEPT for the ____ (which is supplied by the ___) recurrent laryngeal nerve (CN X); cricothyoroid (superior laryngeal branch of the vagus)
All infrahyoid muscles are supplied by the ___ ___, except for the ____, which is supplied by the ____. This branch also supplies the ___. ansa cervicalis (C1-C3); thyrohyoid (supplie by a branch of C1); geniohyoid
The sternocleidomastoid and the trapezius are supplied by the ___ nerve. Accessory (CN XI)
The scalenes are supplied by ____. Direct branches of the ventral rami of the cervical spinal nerves
What do the postganglionic sympathetic fibers of the superior cervical ganglion supply? The dilator of the pupil, the orbitalis, the smooth muscle fibers of the levator palpebrae superioris
The postganglionic parasympathetics supply the ____ of the pupil and the ___ muscles; they also supply the glands of the ___, the ___, and the ___ glands. constrictor; ciliary; glands of the nasal cavity; salivary glands; lacrimal glands
Created by: karkis77
 

 



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