Infratemporal Fossa
Terms
undefined, object
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- secretion via the parotid gland is controlled by what?
- parasympathetic innervation from the glossopharyngeal N
- auriculotemporal N
- carries post-synaptic, parasympathetic fibers to the parotid gland for secretomotor innervation
- chart the nerve path between the glossopharyngeal in the skull and the auriculotemporal N to the parotid gland?
-
(1) glossopharygeal N exits the skull via the jugular foramen
(2) gives rise to a small tympanic branch that gives rise to the lesser petrosal N
(3) the lesser petrosal N passes through the hiatus of the lesser petrosal and synapses in the otic ganglion
(4) the post-ganglionic fibers form the auriculotemporal N which provides post-gangionic parasympathetic innervation of the parotid - what cushions the articulation between the condylar process and the mandibular fossa?
- articular disc
- articular tubercle
- critical for wide opening of the jaw
- what 4 structures stabilize the TMJ?
-
fibrous joint capsule
temporal mandibular L (lateral L)
stylomandibular L
sphenomandibular L - temporomandibular L
- provides lateral strength to the TMJ
- sphenomandibular L
- attaches at the spine of the sphenoid bone and extends to the lingula on the medial aspect of the mandible; serves as a "swinging hinge" for the mandible
- stylomandibular L
- a thickening of the fibrous capsule of the parotid gland and does not significantly add to the strength of the joint
- dislocation of the TMJ
- head of the condylar process passes anteriorly beyond the articular tubercle
- what is the mnemonic for the muscles of mastication?
- "these muscles love mastication"
- muscles of mastication
- temporalis M, masseter M, lateral pterygoid M, medial pterygoid M
- what are the two terminal branches of the external carotid A?
- maxillary A & the superficial temporal A
- otic ganglion
- presynaptic parasympathetic fibers from the Glossopharyngeal N synapse here and then become the auriculotemporal N (postsynpaptic parasymp) that causes secretions of the parotid gland
- what goes through the loop of nerve that is the formation of the auriculotemporal N?
- middle meningeal A (which enters the skull through the foramen spinosum and innervates the dura of the brain)
- what type / location of innervation does the lingual N supply to the tongue?
- sensory to anterior 2/3rds
- what are the 4 large visible branches of the mandibular division of the trigeminal N (V3)?
-
most anterior: buccal N
across medial pterygoid M: lingual N
inferior alveolar
auriculotemporal