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Anatomy > Mastication > Flashcards

Mastication Flashcards

1
Q

Ophthalmic divide into?

A

Lacrimal
Frontal
Nasociliary

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2
Q

Maxillary divide into - cranial fossa? pterygopalatine fossa?

A 
Cranial:
- meningeal
Pterygopalatine:
- posterior superior 
- alveolar
- zygomatic
- ganglionic
- infraorbital
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3
Q

Mandibular branch - anterior motor? posterior sensory?

A 
Anterior:
- masseteric
- medial and lateral pterygoid
- buccal
- ant/post deep temporal
Posterior:
- auriculotemporal
- lingual
- inferior alveolar
- mylohyoid
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4
Q

Mandibular nerve sensory and motor distribution?

A 
Sensory:
- lower face
- lower teeth
- ant 2/3 tongue
Motor:
- Muscles of mastication
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5
Q

Surgical function of the infratemporal fossa - hazard?

A 
Anaesthesia for:
- posterior superior alveolar
- inferior alveolar
Hazard:
- injection into vein leading to large haemotoma
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6
Q

Content of the pterygopalatine fossa?

A

Maxillary nerve

Pterygoid canal nerve

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7
Q

Name the 4 muscles of mastication - nerve supply?

A 
Temporalis
Masseter
Lateral pterygoid
Medial pterygoid
Mandibular nerve
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8
Q

Temporalis - function? innervaton?

A

Elevates mandible

Deep temporal nerve branch of manibular

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9
Q

Masseter - function?

A

Elevates mandible

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10
Q

Lateral pterygoid - function? location?

A

Depresses and protrudes mandible
Aids in lateral excursion of the mandible
Across from the ear underneath the zygomatic arch

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11
Q

Medial pterygoid - function? location?

A

Elevate and protrude the mandible
Aids in lateral excursion
From the angle of the mandible

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12
Q

Name the 3 muscles which depress the mandible?

A

Digastric, geniohyoid and mylohyoid

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13
Q

Name the 3 muscles which elevate the mandible

A

Temporalis, masseter and medial pterygoid

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14
Q

Name the 4 muscles which retract the mandible?

A

Temporalis, masseter, geniohyoid and digastric

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15
Q

Name the 2 muscles which protrude the mandible?

A

Lateral pterygoid assisted by medial

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16
Q

Buccinator - function? innervation?

A

Returns food back to mouth from cheek pouch

Facial

Anatomy (17 decks)

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