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Neuroendocrine > Deep Face & Infratemporal Fossa > Flashcards

Deep Face & Infratemporal Fossa Flashcards

1
Q

What is the origin of the masseter M.?

A

zygomatic arch

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2
Q

What is the insertion of the masseter M.?

A

lateral ramus of the mandible

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3
Q

What is the action of the masseter M.?

A

elevate and protrude mandible

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4
Q

What is the innervation of the masseter M.?

A

masseteric N. (branch of V3)

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5
Q

What is the origin of the temporalis M.?

A

floor of temporal fossa

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6
Q

What is the insertion of the temporalis M.?

A

coronoid process and ramus of mandible

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7
Q

What is the action of the temporalis M.?

A

elevate mandible

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8
Q

What is the innervation of the temporalis M.?

A

deep temporal N.

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9
Q

What is the origin of the lateral pterygoid M.?

A

greater wing and lateral pterygoid plate of sphenoid

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10
Q

What is the insertion of the lateral pterygoid M.?

A

neck of the mandible

articular disc of TMJ

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11
Q

What is the action of the lateral pterygoid M.?

A

protrude mandible and side-to-side mvmt

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12
Q

What is the innervation of the lateral pterygoid M.?

A

lateral pterygoid N.

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13
Q

What is the origin of the medial pterygoid M.?

A

maxilla, pterygoid plate and palatine bone

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14
Q

What is the insertion of the medial pterygoid M.?

A

medial surface of ramus of mandible

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15
Q

What is the action of the medial pterygoid M.?

A

elevate mandible and produce grinding motion

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16
Q

What is the innervation of the medial pterygoid M.?

A

medial pterygoid N.

17
Q

What is the origin of the buccinator M.?

A

alveolar process of maxilla and mandible

18
Q

What is the insertion of the buccinator M.?

A

angle of the mouth

19
Q

What is the action of the buccinator M.?

A

keeps cheek taut during chewing

20
Q

What is the innervation of the buccinator M.?

A

branch of mandibular N. (V3 of CN V)

21
Q

What innervates the TMJ?

A

masseteric N.
auriculotemporal N.
posterior deep temporal N.

22
Q

In what direction does a TMJ dislocation occur?

A

anteriorly

-condylar process and head of mandible slip out of mandibular fossa

23
Q

What are the boundaries of the infratemporal fossa?

A 
lateral - ramus of the mandible
anterior - maxilla
medial - lateral pterygoid plate
roof - greater wing of the sphenoid
posterior - tympanic plate, mastoid process
inferior - angle of the mandible
24
Q

What are some major contents of the infratemporal fossa?

A 
lateral and medial pterygoid mm.
inferior alveolar N.
lingual N.
buccal N.
chorda tympani
otic ganglion
maxillary A.

Neuroendocrine (8 decks)

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