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_Anat./GIE #4 > Temporal Region > Flashcards

Temporal Region Flashcards

1
Q

What fills the temporal fossa?

A

temporalis muscle

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2
Q

What 2 foramen pierce the roof of the infratemporal fossa?

A

foramen ovale

foramen spinosum

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3
Q

What separates the head and coronoid process of the mandible?

A

mandibular notch

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4
Q

What movements are allowed by the TMJ?

A

protrusion
retrusion
elevation
depression

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5
Q

When do the mandibular head and articular disc pass anterior to the articular tubercle?

A

when opening the mouth widely

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6
Q

What are the muscles of mastication?

A

masseter
temporalis
lateral pterygoid
medial pterygoid

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7
Q

What innervates the muscles of mastication?

A

branchial motor fibers of V3

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8
Q

What are the actions of the masseter muscle?

A

elevate and protrude mandible

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9
Q

What are the actions of the temporalis muscle?

A

elevate and retrude mandible

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10
Q

What are the actions of the lateral pterygoid muscles?

A

acting together: protrude, depress mandible

acting alternately: large grinding motions

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11
Q

What are the actions of the medial pterygoid muscles?

A

acting together: elevate, protrude mandible

acting alternately: small grinding motions

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12
Q

What are the terminal branches of the external carotid artery?

A

superficial temporal artery

maxillary artery

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13
Q

What are the branches of the 1st part of the maxillary artery?

A

middle meningeal

inferior alveolar

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14
Q

What are the branches of the 2nd part of the maxillary artery?

A

2 deep temporal arteries
lateral & medial pterygoid arteries
masseteric
buccal

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15
Q

What are the branches of the 3rd part of the maxillary artery?

A

infraorbital
descending palatine
posterior superior alveolar
sphenopalatine

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16
Q

What is a pathway for spread of infections?

A

pterygoid venus plexus - between temporal & pterygoid muscles; connects with the facial vein via the cavernous sinus

17
Q

What ganglion is in the infratemporal fossa?

A

otic ganglion

18
Q

What synapses are in the otic ganglion?

A

preganglionic parasympathetics from the lesser petrosal nerve (CN IX) synapse in the otic ganglion; postganglionic sympathetics reach the parotid gland via the auriculotemporal nerve

19
Q

What ganglion is in the pterygopalatine fossa?

A

pterygopalatine ganglion

20
Q

What does the pterygopalatine ganglion hang from?

A

maxillary nerve V2

21
Q

What passes through the sphenopalatine foramen?

A

posterior nasal nerves

22
Q

What artery travels with the greater and lesser palatine nerves?

A

descending palatine artery

_Anat./GIE #4 (15 decks)

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