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28 Cards in this Set
- Front
- Back
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roof
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inferior surface of the greater wing of the sphenoid
temporal bone |
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what does the roof open to superiorly?
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temporal fossa
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what openings does the roof contain?
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rotundum
spinosum petrotympanic fissure |
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anterior wall
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posterior wall of maxilla
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what does the anterior wall contain?
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alveolar foramen
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lateral wall
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ramus of mandible
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what does the lateral wall contain?
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mandibular foramen (where the inferior alveolar nerve will go)
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medial wall
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lateral plate of pterygoid process
pharynx tenso and levator veli palatini |
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what does the medial wall contain?
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pterygomaxillary fissure
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what is the contents of the infratemporal foss?
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maxillary artery
mandibular nerve V3 chorda tympani branch of VII pterygoid venous plexus sphenomandibular ligament lateral and medial pterygoid muscle |
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the temporomandibular joint has a synovial disc that divides it in two. what do the lower and upper parts do respectively?
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lower -- allows hinge-like depression and elevation of the mandible
upper -- allows head of mandible to translocate forward (protrusion) onto the articular tubercle and backward (retraction) into the mandibular fossa |
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muscles involved in protrusion
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lateral pterygoid assisted by medial pterygoid
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muscles of retraction
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posterior fibers of temporalis
deep part of masseter geniohyoid and digastric |
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muscles of elevation
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temporalis
masseter medial pterygoid |
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muscles of depression
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gravity
digastric geniohyoid mylohyoid |
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what does the maxillary artery supply?
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nasal cavity
lateral wall and roof of the oral cavity all the teeth dura mater in the cranial cavity infratemporal fossa |
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where are the terminal branches of the maxillary artery?
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pterygopalatine fossa
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maxillary artery branches -- first part
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middle meningeal (into spinosum)
inferior alveolar |
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maxillary artery branches -- second part
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pterygoid branches
masseteric deep temporal buccal |
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maxillary artery branches -- third part
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posterior superior alveolar artery
anterior superior alveolar descending palatine artery of the pterygoid canal sphenopalatine pharyngeal |
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main trunk V3
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small meningeal branch (sensory)
nerve to medial pterygoid (motor) |
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anterior trunk (V3)
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buccal (sensory)
masseteric (m) deep temporal (m) nerve to lateral pterygoid (m) |
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posterior trunk (V3)
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auriculotemporal (s)
lingual (s) inferior alveolar (s) w/mylohyoid branch (m) |
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lingual nerve path
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descends betw. tensor veli and lateral pterygoid
crosses lateral surface of medial pterygoid joined by chorda tympani of VII in infratemporal fossa |
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GVA innervation of the lingual nerve
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anterior 2/3 tongue
oral mucosa on the floor of the oral cavity lingual gingivae |
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chorda tympani SVA and GVE innervation
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SVA: anterior 2/3 tongue
GVE: para innervation of submandibular and sublingual salivary glands via submandibular |
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location and connections of pterygoid venous plexus
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betw. medial and lateral pterygoid muscles
connects w: retromandibular vein (via short maxillary vein), facial vein (via deep facial vein) |
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what does the pterygoid venous plexus drain?
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nasal cavity
roof and lateral wall of oral cavity all teeth muscles of infratemporal fossa paranasal sinuses nasopharynx |
