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Year 2 - ENT > Physiology of the throat > Flashcards

Physiology of the throat Flashcards

1
Q

Oral cavity functions

A

taste

mastication

speech

digestion

swallowing

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2
Q

anterior 2/3rds of the tongue is developed from….. (embryologically)

A

1st branchial arch

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3
Q

sensation of the anterior 2/3rds of the tongue is from

A

lingual nerve (branch of CNV3)

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4
Q

taste sensation is innervated by…..

A

chorda tympani

branch of CNVII

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5
Q

posterior 1/3rd of the tongue is developed from….. (embryologically)

A

3rd branchial arch

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6
Q

sensation of the posterior 1/3rd of the tongue is from

A

CNIX

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7
Q

What do the intrinsic muscles of the tongue do?

A

alter its shape

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8
Q

what do the extrinsic muscles of the tongue do?

A

alter position

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9
Q

What nerve supplies all muscles of the tongue except for palatoglossus?

A

CN XII

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10
Q

What nerve supplied the palatoglossus?

A

pharyngeal plexus

CNIX-X

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11
Q

4 muscles of mastication

A

lateral pterygoid

medial pterygoid

temporalis

massester

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12
Q

Cranial nerve supply of the muscles of mastication

A

CN V3

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13
Q

epithelium in the oropharynx

A

stratified

non-keratinised squamous

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14
Q

nerve supply to the oropharynx

A

pharyngeal plexus (CNIX + X)

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15
Q

Hypopharynx is continuous with what organ?

A

oesophagus

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16
Q

Hypopharynx boundaries

A

epiglottis

cricoid cartilage

larynx

17
Q

3 phases of swallowing

A

oral phase (voluntary)

pharyngeal (soft palate pulled upwards)

esophageal (sphincter constricts)

18
Q

3 parts of the larynx

A

Supraglottis
Glottis
Subglottic

19
Q

larynx motor innervation

A

All intrinsic mucles supplied by recurrent laryngeal nerve except for cricothyroid muscle (external laryngeal nerve)

20
Q

larynx sensory innervation

A

Supraglottic: internal laryngeal nerve

Glottic and subglottic: recurrent laryngeal nerve

Year 2 - ENT (6 decks)

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