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31 Cards in this Set
- Front
- Back
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The facial nerve courses through what foramen in the base of the skull to supply the superficial face?
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Stylomastoid foramen
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What muscle runs from the body of the mandible to the clavicle and covers the anterior surface of the neck?
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Platysma muscle
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The muscle of facial expression surrounding the eye
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Orbicularis oculi
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This muscle originates from the temporal fossa and inserts onto the coronoid process of the mandible. Innervation?
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-Temporalis muscle
-V3 (muscle of mastication) |
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Muscle that originates from the zygomatic arch and inserts onto the angle of the mandible. Innervation?
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-Masseter
-V3 (muscle of mastication) |
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The parotid duct runs...
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-about 2cm below and parallel to the zygomatic arch, crossing the superficial surface of the masseter
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The parotid duct pierces what muscle to enter the vestibule of the oral cavity and emerge opposite the second upper molar?
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Buccinator
(innervation - Facial) |
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Vessels running superior and parallel to the parotid duct
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-Transverse facial artery and vein
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The transverse facial artery is a branch of what vessel?
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Superficial temporal artery (most superior branch of the external carotid)
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Name the 5 main branches of the facial nerve, inferior to superior.
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-Cervical
-Mandibular -Buccal -Zygomatic -Temporal |
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These branches should be seen emerging from what structure?
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Capsule of the parotid gland (under it)
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Which is the only branch of the facial nerve to cross the angle of the mandible? What muscle does it innervate?
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-Cervical branch
-platysma muscle |
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Name the three divisions of the trigeminal nerve.
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-V1 - ophthalmic
-V2 - maxillary -V3 - mandibular |
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Name the main branches of the ophthalmic nerve.
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-Frontal nerve
-Nasociliary nerve -Lacrimal nerve -Infratrochlear |
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The frontal nerve divides into what two branches?
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-Supratrochlear (more medial)
-Supraorbital (more lateral) |
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Bell's palsy is a condition in which _______________ becomes paralyzed as a result of infection (usually herpes simplex virus)
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the facial nerve
-inability to keep food in mouth or smile (orbicularis oris) -loss of blink reflex (orbicularis oculi) -possible decreased salivation and loss of taste (if chorda tympani affected) |
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Sudden onsets of excruciating facial pain brought on by touch, draft of cold, movement, or eating, in the regions innervated by (most commonly) the maxillary and mandibular branches of the trigeminal nerve is what?
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Trigeminal neuralgia
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Sensory to the skin of most of the areas on the sides of the nose, the forehead, and the eyelids are all by what nerve?
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-ophthalmic branch of 5 (V1)
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3 major branches of V2
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-Infraorbital nerve
-Zygomaticofacial nerve -Zygomaticotemporal nerve |
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3 major branches of V3
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-Mental nerve
-Buccal nerve -Auriculotemporal nerve |
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Sensory innervation of the skin of the upper lip is by what nerve?
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V2
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Sensory innervation to the skin of the preauricular cheek is by what nerve?
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V3
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Sensory innervation to the mucosa underlying the buccinator muscle is by what nerve?
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V3
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The supraorbital branch of V1 passes through what foramen to innervate the forehead area?
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Supraorbital notch/foramen
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The infraorbital nerve passing through the infraorbital foramen is a branch of what nerve?
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V2
(infratrochlear is V1) |
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The opening in the anterior portion of the mandible through with a branch of V3 passes is called what?
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Mental foramen (mental nerve passes thru it)
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What 3 foramen for branches of the trigeminal nerves lie in the same parasagittal plane?
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-supraorbital foramen
-infraorbital foramen -mental foramen |
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Motor innervation of the buccinator muscle is provided by what nerve?
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Buccal branch of facial nerve
(NOT buccal branch of V3) |
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All the muscles of _____________ are innervated by V3 while all the muscles of ________________ are innervated by the facial nerve.
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-mastication - V3
-facial expression - facial nerve (VII) |
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Follow the course of the angular vein to its termination.
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Angular vein --> facial vein --> joins anterior branch of retromandibular vein to become common facial vein --> internal jugular vein
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The facial artery comes off of the __________. The terminal branch of the facial artery is the ____________.
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-External carotid artery
-Angular artery |
