lecture 4 - head & neck 4 Flashcards

1
Q

What are the 2 folds formed by the quadrangular membrane?

A

Aryepiglottic fold, vestibular fold

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2
Q

What fold is formed by the cricothyroid membrane?

A

vocal fold

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3
Q

What is the name of the gap between the two vocal cords?

A

Rima glottidis

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4
Q

What is the space within the larynx above the vestibular folds?

A

Vestibule

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5
Q

What is the function of the cricothyroid muscle?

A

stretches and tenses vocal cords

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6
Q

What is the function of the thyro-arytenoid muscle?

A

relaxes vocal fold

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7
Q

What is the function of the lateral crico-arytenoid muscle?

A

adducts vocal fold (brings folds together)

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8
Q

What is the function of the transverse and oblique arytenoid muscles?

A

aid in adduction of the vocal cords

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9
Q

What is the function of the aryepiglottic muscle?

A

narrows entrance to larynx, preventing food from entering

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10
Q

What is the function of the posterior crico-arytenoid muscle?

A

abducts vocal folds

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11
Q

What is the nerve supply for the intrinsic muscles of the larynx?

A

Recurrent laryngeal nerve for all except cricothyroid (external laryngeal)

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12
Q

What is the nerve supply to the mucous lining of the larynx above the vocal cords?

A

Internal laryngeal nerve

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13
Q

What is the nerve supply to the mucous lining of the larynx below the vocal cords?

A

Recurrent laryngeal nerve

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14
Q

What cranial nerve branches into the laryngeal nerves?

A

Vagus nerve

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15
Q

Where does the left recurrent laryngeal nerve originate?

A

The thorax

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16
Q

Where does the right recurrent laryngeal nerve originate?

A

root of the neck

17
Q

Which muscles form the floor of the mouth?

A

Mylohyoid

18
Q

What nerve supplies the mylohyoid muscle?

A

Mylohyoid nerve, a branch of the inferior alveolar nerve of V3

19
Q

What is the innervation of geniohyoid?

A

C1 via the hypoglossal nerve

20
Q

How many adult teeth are there?

A

32

21
Q

What are the 3 types of teeth?

A

molar, premolars, incisors

22
Q

How many deciduous teeth does a child have?

A

20 total

23
Q

Which nerve does the lingual nerve arise from?

A

V3 (mandibular)

24
Q

Which nerve does the lingual nerve run with?

A

Chorda tympanii (branch of facial nerve)

25
Q

What does the lingual nerve supply?

A

General sensation (not taste) to the mucosa of anterior 2/3 of the tongue and floor of the oral cavity

26
Q

What does the chorda tympani nerve supply?

A

taste to anterior 2/3 of tongue, parasympathetic, secretion at submandibular and sublingual glands

27
Q

What does the inferior alveolar nerve become when it exits the mental foramen?

A

mental nerve

28
Q

Where do the greater and lesser palatine nerves enter the mouth?

A

Through the greater and lesser palatine foramina

29
Q

What does the greater palatine nerve supply?

A

sensation to hard palate

30
Q

What does the lesser palatine nerve supply?

A

the soft palate

31
Q

Where does the nasoapalatine nerve enter the hard palate?

A

via the incisory canal

32
Q

Where does the maxillary nerve change name to infraorbital nerve?

A

At the inferior orbital canal/fissure

33
Q

Which muscle does the glossopharyngeal nerve supply?

A

The stylopharyngeus