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All extraocular muscles, including the levator palpebrae superioris are supplied by the ____ nerve, except for the ___ ___ and the ___ ___, which are supplied by ___ and ___
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All muscles of the palate are supplied by the ____ nerve EXCEPT the ___ ____, which is supplied by ___.
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Motor Supply H&N
Summary to the motor supply of the head and neck
| Question | Answer |
|---|---|
| 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 |
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