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Anatomy > 40. Parotid Gland and Temporal Region > Flashcards

40. Parotid Gland and Temporal Region Flashcards

1
Q

What cells are in the parotid gland?

A

Serous acini

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2
Q

What ligament is an extension of the fibrous capsule of the parotid gland?

A

Stylomandibular ligament

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3
Q

What does the parotid duct pierce when entering the oral cavity?

A

Buccal fat pad

Buccinator

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4
Q

Branches of facial nerve? (6)

A 
Temporal 
Zygomatic
Buccal 
Marginal mandibular
Cervical 
Posterior auricular
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5
Q

What artery does the transverse facial artery branch from?

A

Superficial temporal

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6
Q

What does the external carotid artery divide into when in the parotid gland?

A

Superficial temporal artery

Maxillary artery

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7
Q

What veins make up the retromandibular vein?

A

Superficial temporal vein

Maxillary vein

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8
Q

Parasympathetic secretomotor supply of parotid gland?

A

Glossopharyngeal nerve (CN IX)

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9
Q

What are the 4 muscles of mastication?

A

Temporalis
Masseter
Medial pterygoid
Lateral pterygoid

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10
Q

Innervation of muscles of mastication?

A

Mandibular division of trigeminal CN V3

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11
Q

Movements of the mandible?

A 
Elevation
Depression
Protrusion
Retrusion
Lateral sliding
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12
Q

Origin of temporalis?

A

Temporal fossa

Temporal fascia

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13
Q

Insertion of temporalis?

A

Coronoid process

Anterior border of the ramus of mandible

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14
Q

Action of temporalis?

A

Anterior and superior fibres - elevate mandible

Posterior fibres - retract mandible

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15
Q

Innervation of temporalis?

A

Deep temporal nerves (x2) from anterior division of mandibular division of trigeminal nerve

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16
Q

Origin of masseter?

A

Zygomatic arch

17
Q

Insertion of masseter?

A

Lateral aspect of ramus of mandible

18
Q

Action of masseter?

A

Elevate mandible

19
Q

Innervation of masseter?

A

Masseteric nerve from anterior division of CNV3

20
Q

Origin of lateral pterygoid?

A

Upper - infratemporal surface of greater wing of sphenoid

Lower - lateral surface of lateral pterygoid plate

21
Q

Insertion of lateral pterygoid?

A

Neck of mandible and articular disc

22
Q

Action of lateral pterygoid?

A

Pulls neck of mandible forwards with articular disc (protrusion = both)

Help in lateral chewing with medial pterygoid

23
Q

Innervation of lateral pterygoid?

A

Anterior division of CNV3

24
Q

Origin of medial pterygoid?

A

Superficial - tubercle of maxilla

Deep - medial surface of lateral pterygoid plate

25
Q

Insertion of medial pterygoid?

A

Medial surface of angle of mandible

26
Q

Action of medial pterygoid?

A

Assists in elevation

27
Q

Innervation of medial pteryhoid?

A

Nerve to medial pterygoid from the main trunk of the mandibular division of the trigeminal nerve (CNV3)

28
Q

Make sure you can describe the movements of the mandible

A

Slide 15

29
Q

Pre-division branches of mandibular division of trigeminal nerve?

A

Meningeal

Nerve to medial pterygoid (also tensor tympani and tensor veli palatini)

30
Q

Anterior division of mandibular division of trigeminal nerve?

A

Masseteric nerve
Nerve to lateral pterygoid
x2 deep temporal
Buccal

31
Q

Posterior division of mandibular division of trigeminal nerve?

A

Auriculotemporal
Lingual
Inferior alveolar
Mylohyoid

32
Q

What do the R and L common carotid arteries arise from?

A

R - from brachiocephalic

L - from aortic arch

33
Q

Posterior branches of ECA?

A

Occipital
Posterior auricular

Ascending pharyngeal (from ‘deep’ surface of carotid)

34
Q

Anterior branches of ECA?

A 
Superior thyroid
Lingual 
Facial
Maxillary 
Superficial temporal
35
Q

Terminal branches of ECA?

A

Superficial temporal

Maxillary

36
Q

Lymphatics of face and neck

A

Slide 24

Anatomy (49 decks)

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