Lecture 13 Flashcards

1
Q

What are intrinsic laryngeal muscles?

A

Both attachments are in the larynx

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2
Q

What are extrinsic laryngeal muscles?

A

1 attachment on the larynx, one outside of the larynx

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3
Q

What are the five intrinsic laryngeal muscles?

A

1) cricoidthyroid
2) thyroarytenoid
3) lateral cricoarytenoid
4) inter arytenoid
5) posterior cricoarytenoid

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4
Q

What are the two types of extrinsic laryngeal muscles?

A

1) suprahyoid

2) infrahyoid

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5
Q

What are the 6 suprahyoid extrinsic laryngeal muscles?

A

1) digastric
2) stylohyoid
3) mylohyoid
4) geniohyoid
5) hypoglossal
6) thyrohyoid

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6
Q

What are the 4 infrahyoid muscles?

A

1) sternothyroid
2) sternohyoid
3) omohyoid
4) thyrohyoid

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7
Q

The intrinsic laryngeal muscles control the _______ ______ of ________ ________

A

Relative positions; laryngeal cartilages

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8
Q

The Interarytenoids are treated as ______ muscles because there are ____ aryetnoids

A

Unpaired; two

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9
Q

What are the two parts of the interarytenoid?

A

Transverse and oblique

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10
Q

In the IA, the _______ portion pulls the bases of the arytenoids toward each other, and the ______ portion pulls the tips of the arytenoids together

A

Transverse; oblique

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11
Q

The transverse portion of the IA is _____ to the oblique portion

A

Deep

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12
Q

The function of the IA is that is causes the ___________ to come together

A

Arytenoid

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13
Q

The LCA are _____ muscles

A

Paired

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14
Q

The function of the LCA is upon contraction the ________ processes of the _______ are pulled ________ or _______

A

Muscular; arytenoids; anteriorly; medialy

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15
Q

The Cricothyroid is the main muscles for _____ control

A

Pitch

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16
Q

How does the CT raise pitch?

A

Rocking the cricoid upward or thyroid downward, resulting in stretched and elongated VFs

17
Q

What are the two parts of the CT msucles and which is vertical and which is oblique?

A

1) pars recta - vertical

2) pars oblique - oblique

18
Q

The posterior cricoarytenoid is the only intrinsic _______

19
Q

The function of the PCA is upon contraction the ________ processes pulled _______, which opens the _____ _____

A

Muscular; posteriorly; vocal folds

20
Q

What are the two parts of the Thyroarytenoid?

A

1) vocalis

2) thyromuscularis

21
Q

TA Vocalis:
______ portion
Origin: ______
Insertion: _____ ________

A

Medial
Thyroid
Vocal processes

22
Q

TA thyromuscularis
_______ portion
Origin: _______
Insertion: ________ _______

A

Lateral
Thyroid
Muscular processes

23
Q

The TA vocalis is the main _____ of the vocal folds and upon contraction it _____ the VFs and may _____ _____

A

Mass; tenses; raise pitch

24
Q

The TA thyromuscularis probably pulls _________ toward the ______ ____ (________) to ________ the VFs

A

Arytenoids; thyroid angle; anteriorly; shorten

25
Q

What are the four intrinsic adductors?

A

1) interarytenoid
2) Lateral cricoarytenoid
3) cricothyroid
4) thyroarytenoid

26
Q

The extrinsic laryngeal muscles determine the ________ laryngeal ________ in the body

A

Overall; position

27
Q

The extrinsic laryngeal muscles are probably more important for __________ purposes such as __________

A

Vegatative; swallowing

28
Q

Suprahyoid muscles are one that have ________ attachment above the level of the _______

A

Extrinsic; hyoid

29
Q

The major laryngeal ________ are important for swallowing

30
Q

The _______ forms the floor of the mouth

31
Q

Genio means ____

32
Q

Which 3 muscles pull the hyoid forward?

A

1) anterior belly of digastric
2) mylohyoid
3) geniohyoid

33
Q

Which 2 muscles pull the hyoid backward?

A

1) posterior belly of digastric

2) stylohyoid

34
Q

What are the 3 major laryngeal depressors?

A

1) sternothyroid
2) sternohyoid
3) omohyoid

35
Q

omos = _______