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Theme 2: Sensory Inputs and Motor Outputs > Face, temporal and infratemporal fossa > Flashcards

Face, temporal and infratemporal fossa Flashcards

1
Q

What is the role of occipitofrontalis

A

elevates eyebrows

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2
Q

What is the role of the the Orbicularis oris

A

closes mouth

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3
Q

What is the role of the Orbicularis oculi

A

closes eyelids

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4
Q

What is the role of the Zygomaticus major

A

elevates labial commissure

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5
Q

What is the role of the Platysma

A

depresses mandible against resistance, tenses fascia of neck.

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6
Q

What is the role of the buccinator

A

compresses cheek

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7
Q

What is the cutaneuos innervation of the mouth

A

Trigeminal nerve (CNV)

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8
Q

What nerve innervates muscles of facial expression?

A

CNVII

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9
Q

Which muscles are involved in mastication?

A
  • temporalis-elevation
  • masseter- elevation
  • medial pterygoid- elevation
  • lateral pterygoid- depression
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10
Q

What is the arterial supply to the face

A

external carotid artery

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11
Q

What are the branches of the external carotid artery? (6)

A 
Lingual
Facial
Maxillary
Superficial temporal
Superior thyroid
Ascending pharyngeal
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12
Q

What runs through the parotid gland?

A

Retromandibular vein, external carotid artery and facial nerve

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13
Q

What does the parotid gland open into?

A

Oral cavity

Upper second molar tooth

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14
Q

What is contained within the infratemporal fossa?

A

Maxillary artery
V3
Medial and lateral pterygoids
CN7 & CN9 and pterygoid plexus of veins

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15
Q

What is the pathway of V2 maxillary nerve?

A

Enters pterygopalatine fossa, gives off branches to pterygopalatine ganglion, through infraorbital fissure

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16
Q

Motor branches of facial nerve (6)

A
  • Posterior Auricular
  • Temporal
  • Zygomatic
  • Buccal
  • Marginal Mandibular
  • Cervical
17
Q

What is the role of CN7 in transmitting taste?

A

special afferent via chorda tympani via lingual nerve

-anterior 2/3 of tongue

18
Q

Branches of CN VI.

What does it supply

A

Lacrimal

Nasocilliary

Frontal

Sensory fibres skin, mucous membranes, conjunctiva, front of head and nose

19
Q

Branches of V2

What does it supply?

A

Infraorbital, zygomaticofacial and zygomaticotemporal

Sensory fibres dura, nasal, upper
cheek, lip, teeth

20
Q

Sensory Branches of V3 (5)

What does its motor branches supply?

A

buccal, auriculotemporal, lingual, inferior alveolar, mental

Motor-muscles of mastication

21
Q

What is contained within the temporal fossa?

A

temporalis muscle

branches of V2

22
Q

Outline venous drainage of the face

A

Facial Vein>IJV

Superficial Temporal>EJV

Theme 2: Sensory Inputs and Motor Outputs (13 decks)

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