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Module 202 > face temporal and infratemporal fossa > Flashcards

face temporal and infratemporal fossa Flashcards

1
Q

occipito frontalis

A

elevates eyebrow

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2
Q

orbicularis oris

A

closes eyelids

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3
Q

orbicularis oculi

A

closes mouth

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4
Q

zygomaticus major

A
  • elevates labial commissure
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5
Q

platysma

A

depresses mandible against resistance, tenses facia of neck

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6
Q

buccinator

A

compresses cheek

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7
Q

Innervation:

cutaneous
muscular

A

cutaneous: trigeminal nerve 5
muscular: facial nerve 7

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8
Q

Cn7

A

facial

type: sensory (taste), motor and visceral motor
exit: internal acoustic meatus, facial canal, stylomastoid foramen

motor- eg temporal
parasympathetic- eg branches to pterygopalatine ganglion
taste- anterior 2/3 tongue
sensory- skin over external auditory meatus

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9
Q

3 salivary glands

A

parotid, submandibular, sublingual

parotid gland:

  • superficial to muscles
  • sits on corner of jawline
  • parotid duct goes under buccinator
  • opens into molar cavity at second upper molar
  • facial nerve passes through parotid gland
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10
Q

temporalis

A

elevation, retraction

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11
Q

masseter

A

elevation

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12
Q

medial pterygoid

A

elevation, side to side

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13
Q

lateral pterygoid

A

protrusion and depression

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14
Q

all muscles of mastication innervation

A

motor branch of V3 (trigeminal)

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15
Q

cn5

A

trigeminal

type: somatic (general sensory) and somatic motor

3 divisions:
- ophthalmic, maxillary, mandibular (V123

exit through
superior orbital fissure v1
foramen rotundum v2
foramen ovale v3

ophthalmic- sensory skin, mucous membranes, front of head and nose
»> frontal, lacrimal, nasocillary

maxillary- sensory dura, nasal, upper cheek, lip, teeth
» infraorbital, zygomaticofacial, zygomaticotemporal

mandibular- sensory, lower face. lip, teeth
»>sensory- buccal, mental, lingual
»>motor- temporalis, masseter, medial
parasympathetic to salivary glands

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16
Q

temporal and infratemporal fossa

A

temporal- fan shaped, located on surface of skull
- contains temporalis muscle, branches v2

infratemporal- inferor to temporal
- contains medial and lateral pterygoids, maxillary artery, v3, facial nerve branches, glossopharyngeal nerve, pterygoid plexus

17
Q

arteries to face

A
  • from external carotid

lingual, facial, maxillary, superficial temporal

18
Q

venous drainage of face

A
  • facial veins drains majority
  • this goes into internal jugular

superficial temporal vein drains into external jugular

Module 202 (49 decks)

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