Larynx Flashcards

1
Q

these two structures of the neck are found at the same region the thyroid cartilage is found

A

pharynx and larynx

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2
Q

in the posterior part of larynx, what is in between corniculate cartilage around C4 and the cricoid cartilage around C6

A

arytenoid cartilage

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3
Q

what cartilage is connected to the vocal cord in anterior part of larynx and also connected to the corniculate cartilage in posterior part of larynx

A

arytenoid cartilage

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4
Q

2 parts of the arytenoid cartilage

A

vocal process
muscular process

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5
Q

what connects the vestibule of the epiglottis to the cricoid cartilage (2 folds)

A

vestibular fold
true vocal fold

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6
Q

what is in between the two folds of interior larynx

A

ventricle

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7
Q

spot between vestibular and vocal folds

A

rima

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8
Q

the mucous membrane of the vestibule (supraglottic) region

A

Quandragular membrane

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9
Q

mucous membrane of the infraglottic region

A

Conus elasticus

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10
Q

innervation to the supraglottic region

A

internal laryngeal n. (branch of CN X)

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11
Q

sensory to the infraglottic region

A

inferior laryngeal n. (branch of CN X)

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12
Q

motor innervation of the intrinsic muscles of larynx

A

CN X

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13
Q

only intrinsic muscle NOT innervated by inferior laryngeal n.

A

Cricothyroid

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14
Q

innervation to cricothyroid

A

external laryngeal n.

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15
Q

this muscle tenses the vocal ligament

A

Cricothyroid

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16
Q

this muscle is innervated by the inferior laryngeal n. and abducts the focal ligaments (gets air in to breathe)

A

Posterior Cricoarytenoid

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17
Q

this muscle is innervated by the inferior laryngeal n. and adducts the vocal ligaments

A

Lateral Cricoarytenoid

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18
Q

this muscle is innervated by the inferior laryngeal n. and adducts the vocal ligament

also closes glottis posteriorly

A

Transverse Arytenoid

19
Q

this muscle is innervated by inferior laryngeal n. and adducts vocal ligaments

closes glottis posteriorly along with transverse arytenoid

A

Oblique Arytenoid

20
Q

this muscle is innervated by the inferior laryngeal n. and relaxes the vocal ligaments

A

Thyroartenoid

21
Q

most medial fibers and responsible for changing pitch

A

Vocalis m.

22
Q

muscle that is innervated by the inferior laryngeal n. and adducts the vestibule posteriorly

A

Aryepiglottic

23
Q

cranial nerve that provides both afferent and efferent innervation to the cough reflex

A

CN X

24
Q

these 3 nerves provide somatic efferent innervation to the cough reflex

A

phrenic
intercostal nerves
thoracoabdominal nerves

25
Q

lymph flow of larynx

A

to the deep cervical nodes:
jugulodigastric
juguloomohyoid

26
Q

2 motor ganglia of the vagus n.

A

nucleus ambiguus
dorsal motor nucleus

27
Q

this motor ganglia innervates skeletal muscle of pharynx, larynx, and soft palate

A

nucleus ambiguus

28
Q

this motor ganglia sends parasympathetics to digestive system

A

dorsal motor nucleus

29
Q

brainstem
skull base
carotid
thyroid
aorta

A

sites of injury for vagus n. or its branches

30
Q

vagal nerve branches that could be injured during ligation of arteries to the thyroid gland

A

internal laryngeal n.
inferior laryngeal n.
recurrent laryngeal n.
external laryngeal n.

31
Q

2 main things that can happen during vocal fold paralysis

A

vocal cord doesn’t close completely (both for bilateral paralysis and 1 side for unilateral paralysis)

32
Q

labored breathing

A

dyspnea

33
Q

high pitched wheezing due to obstruction of airway

A

stridor

34
Q

upper airway infection causes barking cough- can lead to stridor

A

croup

35
Q

inflammation of epiglottis

A

epiglottitis

36
Q

looks like thumbprint in X-Ray; swollen epiglottis

A

sign of epiglottitis

37
Q

when plane of face is parallel to spine (what is this a sign of)

A

epiglottitis

38
Q

most common congenital anomaly of larynx

A

Laryngomalacia

39
Q

this is due to inspiration obstruction and leads to stridor

A

laryngomalacia

40
Q

2 symptoms of laryngomalacia

A

cyanosis
apnea

41
Q

turning blue

A

cyanosis

42
Q

larynx remains blocked by cartilage or other tissue

infant has to get immediate tracheostomy at birth to survive

A

laryngeal atresia (CHAOS)

43
Q

CHAOS stands for

A

Congenital High Airway Obstruction Syndrome