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Gross II > Exam 2: Larynx > Flashcards

Exam 2: Larynx Flashcards

1
Q

Larynx connects

A

Lower part of pharynx to trachea

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2
Q

Functions of larynx

A
  1. Prevents passage of food into airway
  2. Regulates flow of air into lungs
  3. Vocalization
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3
Q

Larynx lies at which vertebral level

A

C3-C6

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4
Q

6 cartilages of larynx

A
  1. Thyroid
  2. Cricoid
  3. Epiglottic
  4. Arytenoid
  5. Corniculate
  6. Cuneiform
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5
Q

Which part of thyroid cartilage is the “Adam’s Apple”

A

Laryngeal prominence

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6
Q

Most inferior of laryngeal cartilages

A

Cricoid

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7
Q

Spoon-shaped cartilage lies behind root of tongue and body of hyoid

A

Epiglottic

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8
Q

Lower end of epiglottic cart. attached to back of laryngeal prominence by

A

Thyroepiglottic ligament

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9
Q

Paired cartilages, pyramidal, articulate with cricoid cartilage

A

Arytenoid cartilage

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10
Q

2 processes on arytenoid cartilages

A 
Vocal process (vocal lig)
Muscular process (intrinsic muscles of larynx)
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11
Q

Paired cartilages, lie on apices of arytenoid cartilages

A

Corniculate cartilages

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12
Q

Paired cartilages, lie in aryepiglottic folds

A

Cuneiform cartilages

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13
Q

Cricothyroid joint is between

A

Side of cricoid cartilage and inferior horn of thyroid cartilage

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14
Q

Cricothyroid joint permits what movement

A

Rotation of thyroid cartilage around horizontal axis

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15
Q

Cricoarytenoid joint is between

A

Upper border of cricoid cartilage and base of arytenoid cartilage

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16
Q

Cricoarytenoid joint permits what movement

A

Gliding and rotation of arytenoid cartilage on cricoid cartilage

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17
Q

Thyrohyoid membrane is between

A

Thyroid cartilage and hyoid bone

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18
Q

Thyrohyoid membrane is pierced by

A

Internal laryngeal nerve and superior laryngeal vessels

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19
Q

Median cricothyroid ligament is between

A

Arch of cricoid cartilage to thyroid cartilage

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20
Q

Vocal ligament is between

A

Thyroid cartilage to vocal process of arytenoid cartilage

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21
Q

Conus elasticus location

A

Extends up from cricoid cartilage to vocal ligament

22
Q

Quadrangular membrane connects

A

Epiglottic cartilage to aryntenoid cartilage

23
Q

Superior margin of quadrangular membrane

A

Forms aryepiglottic ligament

24
Q

Inferior margin of quadrangular membrane

A

Forms vestibular ligament

25
Q

2 pairs of folds

A
  1. Vestibular folds (false vocal)

2. Vocal folds (true vocal)

26
Q

Vocal folds contain ____ ligament and ____ muscle.

A

Vocal ligament

Vocalis muscle

27
Q

______ forms bulk of vocal fold

A

Vocalis muscle

28
Q

Rima vestibuli

A

Space between vestibular folds

29
Q

Rima glottidis

A

Space between vocal folds

30
Q

3 cavities of larynx

A
  1. Laryngeal vestibule
  2. Laryngeal ventricles
  3. Infraglottic cavity
31
Q

Laryngeal saccule

A

Small diverticulum within laryngeal ventricle

32
Q

Laryngeal saccule contains

A

Glands which lubricate vocal folds

33
Q

Hoarseness due to excessive speaking/singing caused by

A

Lubricant from saccule temporarily depletes

34
Q

Extrinsic muscles of larynx function

A

Move larynx as a whole

35
Q

Elevator extrinsic muscles of larynx

A
  1. Thyrohyoid
  2. Stylohyoid
  3. Mylohyoid
  4. Digastric
  5. Stylopharyngeus
  6. Palatopharyngeus
36
Q

Depressor extrinsic muscles of larynx

A
  1. Omohyoid
  2. Sternohyoid
  3. Sternothyroid
37
Q

Recurrent laryngeal nerve motor to

A

Intrinsic muscles of larynx except cricothyroid

38
Q

Recurrent laryngeal nerve sensory to

A

Mucosa of larynx below vocal fold

39
Q

Internal laryngeal nerve sensory to

A

Mucosa of larynx above vocal folds

40
Q

External laryngeal nerve motor to

A

Cricothyroid and inferior constrictor muscles

41
Q

Blood supply of larynx

A

Superior laryngeal artery

Inferior laryngeal artery

42
Q

Oblique line of thyroid cartilage is attachment site for which muscles

A

Inferior constrictor
Sternothyroid
Thyrohyoid

43
Q

Cricoid cartilage consists of

A

Narrow, anterior arch

Broad, posterior lamina

44
Q

Vocal process of arytenoid cartilage

A

Attachment to vocal ligament

45
Q

Muscular process of arytenoid cartilage

A

Attachment to intrinsic muscles of larynx

46
Q

Size and shape of rima glottidis is altered during

A

Phonation and respiration

47
Q

Rima glottidis is ______ during inspiration

A

Wide

48
Q

Rima glottidis is ______________ during expiration and phonation

A

Narrow and wedge shaped

49
Q

What determines pitch

A

Tension of vocal folds

50
Q

To raise pitch what happens to tension

A

Increased

51
Q

To Lower the pitch what happens to tension

A

Decreased

Gross II (29 decks)

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