larynx muscles Flashcards

1
Q

What are the 6 elevators of the larynx?

A
Thyrohyoid
Stylohyoid
Mylohyoid
Digastric
Stylopharyngeus 
Palatopharyngeus
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2
Q

what are the 3 depressors of the larynx?

A

Omohyoid
Sternohyoid
Sternothyroid

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3
Q

what is the job of the extrinsic muscles of the larynx?

A

move the larynx as a whole

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4
Q

which is the only intrinsic muscle that is visible and NOT innervated by the recurrent laryngeal nerve?

A

cricothyroid muscle

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5
Q

what is the origin and insertion of the cricothyroid muscle?

A

O: cricoid cartilage
I: inferior horn and lower lamina of the thyroid cartilage

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6
Q

what is the origin and insertion of the cricoarytenoid muscle?

A

O: posterior surface of lamina of cricoid cartilage
I: muscular process of arytenoid cartilage

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7
Q

what is the origin and insertion of the lateral cricoarytenoid muscle?

A

O: arch of cricoid cartilage
I: muscular process of arytenoid cartilage

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8
Q

what is the origin and insertion of the transverse arytenoid muscle?

A

O: posterior surface of arytenoid cartilage
I: posterior surface of opposite arytenoid cartilage

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9
Q

What is the origin and insertion of the oblique arytenoid muscle?

A

O: muscular process of the arytenoid cartilage
I: apex of opposite arytenoid cartilage

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10
Q

What is the origin and insertion of the aryepiglottic muscle?

A

O: apex of arytenoid cartilage
I: side of epiglottic cartilage

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11
Q

what is the origin and insertion of the thyroepiglottic muscle?

A

O: inner surface of the thyroid lamina
I: lateral margin of the epiglottis

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12
Q

what is the origin and insertion of the thyroarytenoid muscle?

A

O: inner surface of the thyroid lamina
I: arytenoid cartilage

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13
Q

what is the origin and insertion of the vocalis muscle?

A

O: inner surface of thyroid lamina
I: vocal process of arytenoid cartilage

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14
Q

Which muscle tenses the vocal cords and raises pitch of voice?

A

Cricothyroid

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15
Q

Which muscle ABducts the vocal folds?

A

Posterior cricoarytenoid muscle

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16
Q

Which 3 muscles ADduct the vocal folds?

A

Lateral cricoarytenoid
Transverse arytenoid
Oblique arytenoid

17
Q

Which muscle closes the laryngeal inlet?

A

Aryepiglottic muscle

18
Q

Which muscle opens the laryngeal inlet?

A

Thyroepiglottic muscle

19
Q

Which muscle adjusts to tension on vocal cords during phonation?

A

Vocalis msucle