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24 Cards in this Set
- Front
- Back
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layers of the scalp
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Skin, dense subcutaneous tissue, galea Aponeurotica, Loose connective tissue, Pericarnium
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what are main branches of the trigeminal nerve/CN V?
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opthalmic V1, maxillary V2, mandibular V3
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what are somatosensory branches of the trigeminal nerve?
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supraorbital (V1), infraorbital (V2), mental (V3), buccal (V3)
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supraorbital foramen and innervation
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foramen: supraorbital foramen; upper eyelid, forehead and anterior scalp
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infraorbital foramen and innervation
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foramen: infraorbital foramen; lower eyelid, medial aspect of check, lateral nose, upper lip
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mental nerve foramen and innervation
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foramen: mental foramen; chin and lower lip
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where do pain and temperature fibers of CN V go?
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face, forehead, mucous membranes of nose, anterior two-thirds of tongue, hard and soft palates, nasal cavities, oral cavity, teeth, external ear and portions of cranial dura
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what nucleus do pain and temperature fibers of CN V project to?
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spinal nucleus V in the medulla via spinal tract V
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what nucleus do conscious proprioception fibers project to of CN V?
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chief sensory nucleus V in the pons (principal nucleus V)
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what nucleus do unconscious proprioception fibers project to of CN V?
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mesencephalic nucleus in the midbrain
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what are muscles of fascial expression?
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orbicularis oris, orbicularis oculi, bucinnator, platysma, frontalis
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function, supply, course of platysma
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Draws corners of mouth down and helps depress the mandible
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function, supply, course of bucinnator
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compresses cheeks, the louie muscle
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function, supply, course of orbicularis oculi
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sphincter of eyelid and keeps eyeball against eyelid
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function, supply, course of orbicularis oris
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flattens and protrudes the lips
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function, supply, course of frontalis
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wrinkles forehead
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what are the major motor branches of CN VII or facial nerve from motor nucleus VII?
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Temporal branch (frontalis), Zygomatic branch (orbicularis oculi), Buccal branch (bucinnator, orbicularis oris), Marginal Mandibular branch (orbicularis oris), cervical (platysma)
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what is the mnemonic for facial nerve?
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The Zebra Bit My Car
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what are the sensory branches of the facial nerve?
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post aricular nerve to ear, ganglion is the geniculate ganglion
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what does the facial artery supply?
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muscles and tissues of face, the sublingual gland, tonsil and soft palate
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how does facial artery arise?
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common carotid-external carotid-facial artery
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what are branches of the facial artery?
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angular artery side of nose supplies the lacrimal sac
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what anastomoses with the facial artery?
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angular artery and dorsal nasal branch of the opthalmic artery
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what do nerves of the cervical plexus innervate?
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skin of head behind ear, external ear, skin over parotid gland and anterior midline of neck to above clavicle and some neck muscles
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