Sensory Innervation of Head/Neck (p.1-5)
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Created by:
flessaspw02 on November 3, 2010
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33 terms
Terms | Definitions |
|---|---|
 facial, VII | Motor innervation to the muscles of facial expression is via branches of the _______ nerve (C.N. ___) |
| trigeminal, V | Sensory innervation of the face is via branches of the ________ nerve (C.N. ___) |
| ophthalmic, maxillary, mandibular | The trigeminal nerve divides into three major branches before emerging in the face, what are they? |
| ophthalmic | Nerve that distributes primarily to the face and scalp |
| maxillary | Nerve that distributes primarily to the cheek and the area lateral to the orbit |
| mandibular | Nerve that distributes primarily to the chin and temporal region |
| supraorbital, supratrochlear, external nasal, infratrochlear, lacrimal | List the 5 nerve branches of the ophthalmic nerve. |
| zygomaticotemporal, zygomaticofacial, infraorbital | List the 3 nerve branches of the maxillary nerve. |
| auriculotemporal, buccal, mental | List the 3 nerve branches of the mandibular nerve. |
| infraorbital nerve | Most frequently injured nerve with blows to the face; frequently injured nerve for boxers... |
| Trigeminal Neuralgia (Tic Doloureaux) | a condition characterized by sudden attacks of severe pain occurring in an area of sensory distribution of the trigeminal nerve; hypersensitivity of nerve often due to touch; occurs most common in maxillary division |
| maxillary, ophthalmic | Which trigeminal division is Trigeminal Neuralgia (Tic Doloureaux) most likely to occur? Least likely? |
| dorsal primary rami, 2, 4 | The sensory innervation of the posterior aspect of the neck and scalp is from the ___________ of cervical nerves ___ to ___ |
| Greater Occipital Nerve | Supplies the occipital region |
| Occipitalis Tertius (Third Occipital Nerve) | Supplies the upper part of the back of the neck |
| Dorsal Primary Ramus of C4 | Supplies the lower part of the back of the neck |
| Ventral Primary Rami, 2, 4 | The sensory innervation of the anterior and lateral aspect of the neck is from the __________ of cervical nerves ___ to ___ |
| Cervical Plexus | Formed by the ventral primary rami of C1, C2, C3, and C4 |
| Lesser Occipital Nerve (C2) | supplies the lateral part of the occipital region, posterior to the ear |
| Great Auricular Nerve (C2, C3) | supplies the angle of the mandible, and the area inferior to the ear. It accompanies the external jugular vein. |
| External jugular vein | What vein does the great auricular nerve accompany? |
| Transverse Cervical Nerve (C2, C3) | supplies the anterior surface of the neck (the throat) |
| Supraclavicular Nerve (C3, C4) | supplies the lateral surface of the neck |
| medial, intermediate, lateral | The three subdivisions of the Supraclavicular Nerve are called the ________, ________, and ________ Supraclavicular Nerves |
| ansa cervicalis | The cervical plexus carries motor fibers to the infrahyoid (strap) muscles. These motor fibers arise from a loop called the __________ |
| Superior Root (descendens hypoglossi), Inferior Root (descendens cervicalis) | What are the two parts of the Ansa Cervicalis? |
| Superior Root (descendens hypoglossi) | portion of ansa cervicalis that descends from the hypoglossal nerve to join the inferior root; C1 or C1 and C2 |
| Inferior Root (descendens cervicalis) | portion of ansa cervicalis that descends from cervical nerve branches to join the superior root; C2 and C3 |
| sternohyoid, sternothyroid, omohyoid | What three infrahyoid muscles does the ansa cervicalis supply? |
| thyrohyoid, hypoglossal | The fourth infrahyoid muscle, the __________, receives its innervation exclusively from C1 fibers through the __________ nerve |
| diaphragm, thorax, abdomen | The Phrenic Nerve is motor to the _________ and sensory to some of the membranes of the _________ and __________ |
| C3, C4, C5 | The Phrenic Nerve originates from which cervical nerves? |
| Phrenic Nerve | Can be found in the neck lying on the anterior surface of the anterior scalene muscle; it runs vertically down the muscle into the thorax |
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