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8 Cards in this Set
- Front
- Back
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FACIAL NERVE
EMERGES FROM? |
III. Facial Nerve
A. Emerges from the skull through the stylomastoid foramen and gives off its posterior auricular branch, which ascends behind the auricle to supply the auricularis posterior and Occipitalis muscles; here, it also gives off branches to the posterior belly ofthe digastric and stylohyoid, and receives postgan- glionic parasympathetic secretomotor fibers from the otic ganglion via the auriculotemporal nerve |
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FACIAL NERVE
WHERE DOES IT ENTER? |
III. Facial Nerve
B. The facial nerve then enters the parotid gland, supplying it with postgan- glionic parasympathetic secretomotor fibers as it forms a plexus within its substance; its major branches emerge along the borders ofthe parotid gland and are named according to their region of distribution |
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FACIAL NERVE; BRANCHES
TEMPORAL |
III. Facial Nerve
1. Temporal branches (two or three): ascend superficial to the zygomatic arch and supply Orbicularis oculi, corrugator supercilii, auricularis an- terior, auricularis superior, and frontalis |
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FACIAL NERVE; BRANCHES
ZYGOMATIC |
III. Facial Nerve
2. Zygomatic branches (two or three): course toward the prominence ofthe cheek and supply Orbicularis oculi |
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FACIAL NERVE; BRANCHES
BUCCAL |
III. Facial Nerve
3. Buccal branches (two or three): course toward the corner ofthe mouth and supply Orbicularis oris, risorius, buccinator, Zygomaticus major, Zygomaticus minor, levator labii superioris, levator labii superioris alaeque nasi, levator anguli oris, depressor septi, nasalis, and procerus |
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FACIAL NERVE; BRANCHES
MARGINAL MANDIBULAR |
III. Facial Nerve
4. Marginal mandibular branch: courses anteriorly above the inferior bor- der of the mandible and supplies depressor anguli oris, depressor labii inferioris, mentalis, and Orbicularis oris |
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FACIAL NERVE; BRANCHES
CERVICAL BRANCH |
III. Facial Nerve
5. Cervical branch: descends anteriorly, inferior to the angle ofthe man- dible, and supplies the platysma |
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FACIAL NERVE
WITHIN THE SUPERFICIAL FASCIA... |
III. Facial Nerve
C. Within the superficial fascia ofthe face, branches ofthe facial nerve anas- tomose with each other and with cutaneous branches of the ophthalmic, maxillary, and mandibular nerves |
