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Head and neck > X Vagus: Larynx > Flashcards

X Vagus: Larynx Flashcards

1
Q

Laryngeal inlet

A

Joins the pharynx to the larynx

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2
Q

Arytenoid cartilages attachment

A

Vocal cords

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3
Q

Cuneiform and corniculate function

A

Give firmness to rings of mucosa

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4
Q

Extrinsic ligaments of the larynx

A

Thyrohyoid ligament
Cricotracheal ligament
Hyoepiglottic ligament

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5
Q

Thyroepiglottic ligament has what membrane on the sides

A

Quadrangular membrane

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6
Q

Free margins on the sides of quadrangular membrane

A

Vestibular folds

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7
Q

In depressions, vestibular folds attach to

A

Vestibular fossa

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8
Q

Crycothyroid ligament is under what ligament

A

Vocal ligament

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9
Q

Vocal ligament is…

A

The core of vocal cord

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10
Q

From top to bottom: vocal, vestibular, crycothyroid lig.

A

Vestibular
Vocal
Cricothyroid

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11
Q

Rima under rima vestibulis

A

Rima glotidis

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12
Q

Length of rima vestibulis

A

From one vestibular fold to the other

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13
Q

Function of extrinsic muscles

A

Move larynx as a whole

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14
Q

Function of intrinsic muscles

A

Move vocal cords

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15
Q

Function of crycothyroid ligament

A

Move crycothyroid joint and stretch the vocal cords

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16
Q

Function of posterior cricoarytenoid muscle

A

Abduction of vocal cords –> opening

17
Q

Function of lateral cricoarytenoid muscle

A

Adduction of vocal cords –> closure

18
Q

Transverse arytenoid muscle function

A

Adduction –> closure

19
Q

Muscles modifying the diameter of laryngeal inlet

A

Oblique arytenoid
Aryepiglottic
Thyroepiglottic

20
Q

During forced inspiration

A

Abduction of vocal cords
Rima glotidis opened
Vestibule opened

21
Q

Phonation

A

Adduction of vocal cords

Vestibule opened

22
Q

Swallowing

A

Adduction
Rima glotidis closed
Vestibular folds closed

23
Q

Innervation of intrinsic muscles of larynx

A

Recurrent laryngeal nerve
Superior laryngeal nerve
Of X vagus nerve

24
Q

Superior laryngeal nerve branches into

A

Internal

External

25
Q

Internal laryngeal nerve innervates

A

Thyrohyoid membrane to gather information about the mucosa

26
Q

External laryngeal nerve innervates

A

Cricothyroid muscle, its a motor nerve

27
Q

Recurrent laryngeal nerve innervates

A

The rest of intrinsic muscles

Therefore all except thyrohyoid membrane and crycothyroid muscle

28
Q

Piriform recess origin

A

At the end of the pharynx

29
Q

Vascularization of larynx

A

External carotid artery –> superior thyroid artery –> superior laryngeal artery

30
Q

Origin of inferior thyroid artery

A

Thyrocervical trunk

31
Q

Do inferior and superior thyroid arteries anastomose

A

Yes

32
Q

Venous drainage

A

Superior laryngeal vein –> internal jugular vein

Inferior laryngeal vein –> bracho-pharyngeal vein

Head and neck (7 decks)

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