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202 > Face, Temporal And Infratemporal Fossa > Flashcards

Face, Temporal And Infratemporal Fossa Flashcards

1
Q

How to test facial nerve?

A

Raise eyebrows, close eyes and keep them closed, puff cheeks and reveal teeth

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2
Q

What does parotid gland do?

A

Produce watery saliva

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3
Q

Facial nerve splits into?

A

Large motor root and smaller nervous intermedius arising at cerebellar pontine angle.

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4
Q

What passes through internal acoustic meatus ?

A

CN 8 and CN 7

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5
Q

Sensory supply of facial nerve?

A

Anterior 2/3 via chorda tympani and submandibular ganglion

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6
Q

After the parotid gland, the facial nerve divides into 5 branches:

A

Temporal, zygomatic, buccal, marginal mandibular, and cervical

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7
Q

Which branch passes behind ear of the facial nerve?

A

Posterior auricular

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8
Q

Deep vein, retromandibular vein is formed by?

A

Superficial temporal vein and maxillary vein join, then into external jugular vein and into subclavian vein

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9
Q

What’s the difference between Bell’s palsy and stroke?

A

In stroke the forehead will be spared and in Bell’s palsy it wont.

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10
Q

Temporalis muscle origin and insertion?

A

Origin- temporal bone

Insertion- medial surface of coronoid process of mandible

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11
Q

Masseter muscle insertion and origin?

A

Origin- zygomatic bone/ arch

Insertion-lateral surface of ramus of the mandible

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12
Q

Infratemporal fossa contains?

A

My mother momentarily forgot giving pizza

Maxillary artery 
Mandibular nerve 
Medial and lateral pterygoids 
Branches of facial nerve
Glossopharyngeal nerve 
Pterygoid plexus of veins
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13
Q

2 heads of medial pterygoid?

A

Deep head from medial surface of the lateral pterygoid plate of sphenoid bone.

Superficial head from maxilla

Both insert to mandible

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14
Q

2 heads of the lateral pterygoid?

A

Upper head- roof of fossa
Lower head- lateral surface of lateral pterygoid plate

Insertion- neck of mandible and temporomandibular joint

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15
Q

How is lateral pterygoid different to other muscles?

A

Depresses mandible

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16
Q

Maxillary artery gives off which branch that travels within mandibular canal?

And what does this artery give off?

A

Inferior alveolar artery gives off mylohyoid branch

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17
Q

Where do both heads of the lateral pterygoids insert?

A

Temporomandibular joint

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18
Q

Bruxism?

A

Teeth grinding

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19
Q

What does auricotemporal nerve do?

A

Conveys postganglionic parasympathetic fibres from otic ganglion to parotid gland

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20
Q

Mandibular nerve supplies which muscles?

A
  1. Medial andl lateral pterygoids
  2. Tensor palatine
  3. Temporalis
  4. Masseter
21
Q

Which sensory branch of mandibular nerve supplies cheek?

A

Buccal nerve

22
Q

Divisions of mandibular nerve?

A

Auricotemporal branch, lingual and inferior alveolar nerve.

23
Q

Where is anaesthetic placed to ancesthetize all mandibular teeth?

A

Inferior alveolar nerve- block

24
Q

What percentage of salivary tumours arise from parotid gland?

A

90% and 75 % of tumours are benign

25
Q

Which benign tumour is associated with smoking history?

A

Warthin’s tumour

26
Q

What are main risk factors for tumours?

A

Genetic predisposition and radiation exposure.

27
Q

Main benign tumour?

A

Pleomorphic adenoma

28
Q

Main malignant tumour?

A

Mucoepidermoid carcinoma

29
Q

What percent of communication is non verbal?

A

Upwards of 70

30
Q

Role of buccinator?

A

Maintains the tightness of the cheeks and presses them against the teeth during chewing

Compresses cheek

31
Q

Role of zygomaticus major?

A

Draws the mouths angle upwards and outwards

Elevates labial commisure

32
Q

Platysma role?

A

Mouth movement including frowning

Depresses mandible against resistance

Tenses fascia of neck

33
Q

What is special about facial muscles?

A

Only group of muscles that insert onto skin

34
Q

Innervation of face?

A

Cutaneous innervation - trigeminal nerve

Muscles of face- facial nerve

35
Q

Ophthalmic nerve splits into?

A

Lacrimal- skin/ secretomotor fibres to lacrimal gland

Frontal- supraorbital and supratrochlear

Nasociliary- posterior ethmoidal, anterior ethmoidal, and infratrochlear

36
Q

How is ophthalmic nerve tested?

A

corneal blink reflex, whips of cotton

37
Q

Which nerve enters the pterygopalatine fossa?

A

Maxillary nerve, gives off branches to pterygopalatine ganglion through inferior orbital fissure

38
Q

Maxillary nerve branches into?

A

Infraorbital
Zygomatic
Superior alveolar

39
Q

Mandibular nerve sensory?

A 
Lingual
Inferior alveolar nerve 
Mental
Buccal
Auriculotemporal
40
Q

Mandibular nerve motor?

A

Temporalis
Masseter
Medial and lateral pterygoids
Nerve to mylohoid

41
Q

What does temporalis fossa contain?

A

Temporalis muscle

Branches of maxillary

42
Q

Where does facial nerve exit and move through

A

Exits via internal acoustic meatus

Moves through facial canal and stylomastoid Foramen

43
Q

Facial nerve sensory and taste?

A

Skin over external auditory meatus

Taste- via chorda tympani via lingual nerve to anterior 2/3 of tongue

44
Q

What passes through parotid gland?

A

Facial nerve

45
Q

What does parotid gland do?

A

Release saliva into upper second molar

46
Q

Muscles of mastication?

A

Temporalis
Masseter
Medial pterygoid
Lateral pterygoid

47
Q

Arterial supply to face?

A

Lingual
Facial
Maxillary
Superficial temporal

48
Q

Facial nerve drains face starting at eye into internal jugular vein except?

A

Superficial temporal drains into external jugular

49
Q

Internal and external jugular vein drain into?

A

Subclavian nerve

202 (58 decks)

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