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31 Cards in this Set
- Front
- Back
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what is the parotid gland situated between
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mandible and external auditory canal
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GSA - general sensory
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via auriculotemporal branch of V3 & great auricular nerve (C2,3)
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GVE: sympathetic innervation carried from
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superior cervical ganglion (T1-T4) to the gland via a nerve plexus on the surface of the external carotid artery
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GVE: preganglionic parasympathetic innervation is from
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CN IX via the lesser petrosal nerve to the otic ganglion
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postganglionic parasympathetic innvervation carried into gland by the
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auriculotemporal nerve
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masticatory space
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fascia enclosed compartment that includes temporal and infratemporal fossae
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all the muscles of mastication are innervated by
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the mandibular division of the trigeminal
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only division of the trigeminal that contains motor fibers
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mandibular division of the trigeminal
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mandibular division of the trigeminal enters the ..
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infratemporal fossa
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mandibular division of the trigeminal enters the infratemporal fossa from the
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middle cranial fossa
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mandibular division of the trigeminal enters the infratemporal fossa from the middle cranial fossa via the
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foramen ovale
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important dental branches of the mandibular division include
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long buccal (anterior division)
auriculotemporal lingual inferior alveolar (posterior division) terminal branches of the inferior alveolar |
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terminal branches of the inferior alveolar include:
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mylohyoid
mental incisive |
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primary blood supply to the infratemporal fossa
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maxillary artery - one of the two terminal branches of the external carotid artery
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maxillary artery is subdivided into 3 parts based upon its relationship to the lateral pterygoid muscle
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part 1: mandibular - from its origin to inferior border of the muscle
part 2: pterygoid part 3: maxillary |
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venous drainage
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dense venous plexus
petygoid venous plexus envelopes the muscles of mastication within the infratemporal fossa and coalesces to form the maxillary vein |
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maxillary vein drains posterior and joins with the ...
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superficial temporal vein to form the retromandibular vein within the parotid region
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pterygiod venous plexus - communications
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cavernous sinus
facial vein inferior ophthalmic vein pharyngeal plexus |
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structures traversing the parotid gland
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facial nerve
retromandibular vein external carotid artery --> maxillary and superficial termporal arteries auriculotemporal nerve |
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sensory branches of the posterior division of V3
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auriculotemporal
lingual inferior alveolar - mental - incisive |
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branches off the stem of the V3
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medial pterygoid nerve
tensor tympani nerve tensor palatini nerve meningeal branch |
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motor branches of the anterior division of V3
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deep temporal
masseteric lateral pterygoid |
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sensory branches of the anterior division of V3
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long buccal nerve
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what supplies sensory and pierces buccinator
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long buccal nerve
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what joins the lingual nerve in the inferior temporal fossa
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chorda tympani
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chorda tympani is a branch of which CN
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CN VII
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what are the functional components of the chorda tympani
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SSA - special sensory
GVE - general visceral efferent to submandibular and lingual salivary glands |
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where are the cell bodies of the special sensory neurons of the chorda tympani
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geniculate ganglion
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what muscles are involved in protrusion of the mandible?
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lateral pterygoid muscles
medial pterygoid muscles masseter muscles |
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what muscles are involved in retrusion of the mandible?
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posterior portion of the temporalis muscles
deep portion of masseter muscles |
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what muscles are involved in lateral movements of the mandible?
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...
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