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Head and Neck Anatomy > Parotid and Temporal Region > Flashcards

Parotid and Temporal Region Flashcards

1
Q

Describe the position of the parotid gland

A

From near EAM towards mandible

Forms a duct, 1 finger breadth below zygomatic arch that crosses anterior to the surface of masseter

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2
Q

What muscle does the parotid duct pierce?

A

Buccinator

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3
Q

What innervates the parotid gland?

A

CN IX

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4
Q

What structures pass through the parotid gland?

A

Facial nerve

- Divides into branches within the gland

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5
Q

What 2 veins form the retromandibular vein?

A

Superficial temporal + Maxillary

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6
Q

What vein contributes to the external jugular vein?

A

Retromandibular vein

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7
Q

What does ECA divide into within parotid?

A

Superficial temporal

Maxillary artery

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8
Q

What is the deepest structure in the parotid gland?

A

Auriculotemporal nerve

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9
Q

What is auricolotemporal nerve a branch of?

A

Trigeminal

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10
Q

What branches when CN IX leaves jugular foramen?

A

Tympanic branch supplies ear

Lesser petrosal

Auriculotemporal carries parasympathetic innervation deep into parotid

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11
Q

Name the muscles of mastication

A

Temporalis
Masseter
Medial/lateral pterygoid

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12
Q

What is the innervation of the muscles of mastication?

A

CNV3

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13
Q

Which muscles causes protrusion?

A

Lateral pterygoid

Medial pterygoid assists

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14
Q

Which muscles cause elevation of mandible?

A

Temporalis, Masseter, medial pterygoid

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15
Q

Which muscles cause depression of mandible?

A

Lateral pterygoid, digastric, geniohyoid, mylohyoid

GRAVITY

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16
Q

Which muscles cause retrusion of mandible?

A

Posterior fibres of temporalis

17
Q

Which muscles cause lateral chewing and what is this a combination of?

A

Protrusion and retrusion

Pterygoids

18
Q

Which divisions of trigeminal are motor/sensory?

A

CNV1 and 2 = sensory

CNV3 - Motor ans sensory

19
Q

Where does CNV3 pass through and which division is larger?

A

Foramen ovale

Posterior

20
Q

Name the motor branches of anterior division of CNV3

A

Massereric

N to lateral pterygoid

2x deep temporal nerves

21
Q

Sensory branch of anterior div CNV3

A

Buccal

skin of cheeks

22
Q

Sensory branches of post division CNV3

A

Auriculotemporal
- Scalp, TMJ, EAM, eardrum

Lingual

23
Q

Sensory and Motor branches of post division CNV3

A

Inferior alveolar

  • lower teeth skin
  • motor to mylohyoid
24
Q

Anterior branches of ECA?

A

Superior thyroid
Lingual
Facial

25
Q

Posterior branches of ECA?

A

Occipital, PA, Ascending pharyngeal

26
Q

Which artery passes under posterior belly of digastric to supply posterior triangle?

A

Occipital

Head and Neck Anatomy (14 decks)

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