Lesson 5 Flashcards

1
Q

what are the vital functions of the phonatory system?

A
  • protecting the lungs

- assisting in performance of physically demanding tasks

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2
Q

whats two other names for the phonatory system?

A

laryngeal and voicing

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3
Q

what makes up the larynx

A
  • cricoid
  • arytenoid
  • thyroid
  • epiglottis
  • corniculates and cuneiforms
  • hyoid bone
  • laryngeal ligaments and membranes
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4
Q

what parts on the larynx are made of hyaline cartilage?

A
  • cricoid
  • arytenoids
  • thyroid
  • corniculates and cuneiforms
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5
Q

what part of the larynx is made of elastic cartilage?

A

epiglottis

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6
Q
  • right on top of the trachea

- specialized trachea ring

A

cricoid

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7
Q

how do you name a processes?

A

by what they connect to

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8
Q
  • has the muscular process
  • has the vocalic process
  • has an apex
  • on each side of the cricoid
  • asymmetrical
A

arytenoids

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9
Q
  • largest cartilage in the larynx
  • symmetrical
  • can pivot on lower cornua
  • the lower cornua attaches to cricoid
A

thyroid

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10
Q
  • leaf/heart shaped
  • attached with a ligament to the thyroid
  • vital for swallowing
  • irrelevant for speech and breathing
A

epiglottis

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11
Q

courses between the inside of the thyroid angle and the vocalic processes of the arytenoid cartilages

part of the vocal folds

A

vocal ligament

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12
Q

muscles connecting parts of the larynx to eachother

A

intrinsic muscles

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13
Q

muscles connecting the larynx to structures outside the larynx

A

extrinsic muscles

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14
Q

these muscles abduct and adduct the vocal folds and affect vocal fold tension

A

intrinsic laryngeal muscles

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15
Q
  • vocalis
  • external or lateral thyroarytenoid
  • cricothyroid
  • posterior cricoarytenoid (PCA)
  • lateral cricoarytenoid (LCA)
  • transverse aryetnoid
  • oblique arytenoid
A

intrinsic laryngeal muscles

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16
Q

what is the origin of the internal thyroarytenoid (vocalis)?

A

angle of thyroid

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17
Q

what is the insertion of the internal thyroarytenoid (vocalis)?

A

vocal process of arytenoid

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18
Q

what is the action of the internal thyroarytenoid (vocalis)?

A

regulate contraction of VFs; tensor of folds

19
Q

what is the origin of the external thyroarytenoid?

A

angle of thyroid

20
Q

what is the insertion of the external thyroarytenoid ?

A

muscular process of arytenoid

21
Q

what is the action of the external thyroarytenoid?

A

pull arytenoids forward and rotates them

-adductor

22
Q

what is the origin of the cricothyroid muscle?

A

anterolateral aspect of arch of cricoid

23
Q

what is the insertion of the cricothyroid muscle?

A

inferior cornu and caudal margin of thyroid

24
Q

what is the action of the cricothyroid?

A

pull thyroid forward and elevate arch of cricoid; regulates vocal pitch by tensing and lengthening VFs

25
Q

what is the origin of the PCA?

A

posterior surface of cricoid

26
Q

what is the insertion of the PCA?

A

muscular process of arytenoid

27
Q

what is the action of the PCA?

A

open and tense VFs; only abductors in larynx

28
Q

what is the origin of the LCA?

A

superior border of arch of cricoid

29
Q

what is the insertion of the LCA?

A

muscular process of arytenoid

30
Q

what is the action of the LCA?

A

close and tense the VFs; adductors; major antagonists of posterior cricoarytenoid; add medical compression to VFs

31
Q

what is the origin of the transverse arytenoid muscles?

A

posterior edge of arytenoids

32
Q

what is the insertion of the transverse arytenoid muscles?

A

same region on contralateral member

33
Q

what is the action of the transverse arytenoid muscles?

A

approximate arytenoids; adductors

34
Q

what is the origin of the oblique arytenoid muscles?

A

posterior surface and lateral margin of arytenoid

35
Q

what is the insertion of the oblique arytenoid muscles?

A

apex of contralateral member

36
Q

what is the action of the oblique arytenoid muscles?

A

draw apices of arytenoids together; adductor

37
Q
  • thyrohyoid
  • sternothyroid
  • sternohyoid
  • omohyoid
  • anterior and posterior bellies of the digastric
  • stylohyoid
  • mylohyoid
  • geniohyoid
A

extrinsic laryngeal muscles

38
Q
  • thyrohyoid
  • sternothyroid
  • sternohyoid
  • omohyoid
A

infrahyoid set

39
Q
  • anterior and posterior bellies of the digastric
  • stylohyoid
  • mylohyoid
  • geniohyoid
A

suprahyoid set

40
Q

what do the suprahyoid muscles do?

A
  • effect pitch
  • effect swallowing
  • capable of elevating the larynx
41
Q

what do the infrahyoid muscles do?

A
  • strap muscles

- capable of pulling down and anchoring the larynx

42
Q

control the shape of the glottis and vibratory behavior of the vocal folds

A

intrinsic

43
Q

support and control position of larynx; elevate or depress the larynx

A

extrinsic