Muscles of Phonation Flashcards by Morgan Stills

Q

Origin of oblique interarytenoid m?

A

muscular process of arytenoid cartilage

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Q

Insertion of oblique interarytenoid m?

A

apex of opposite arytenoid cartilage (x shape)

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Q

Action of oblique interarytenoid m?

A

adduct glottis

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Q

Origin of transverse interarytenoid m?

A

lateral surface of arytenoid cartilage

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Q

Insertion of transverse interarytenoid m?

A

lateral surface of opposite arytenoid

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Q

Action of transverse interarytenoid m?

A

adduct glottis

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Q

Origin of lateral cricoarytenoid m?

A

superior/lateral surface of cricoid cartilage

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Q

Insertion of lateral cricoarytenoid m?

A

muscular process of arytenoid cartilage

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Q

Action of lateral cricoarytenoid m?

A

adduct glottis

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Q

Origin of posterior cricoarytenoid m?

A

posterior of cricoid cartilage

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Q

Insertion of posterior cricoarytenoid m?

A

muscular process of arytenoid cartilage

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Q

Action of posterior cricoarytenoid m?

A

abduct glottis

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Q

Origin of cricothyroid m?

A

anterior surface of cricoid cartilage

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Q

Insertion of cricothyroid m?

A

1) vertical part- lower surface of thyroid cartilage

2) oblique part- lateral surface of thyroid cartilage, by inferior horns

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Q

Action of cricothyroid m?

A

tense and lengthen TVF

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Q

Origin of vocalis (medial thyroarytenoid) m?

A

thyroid cartilage

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Q

Insertion of vocalis m?

A

vocal process of arytenoid cartilage

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Q

Action of vocalis m?

A

tenses TVF

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Q

Origin of lateral thyroarytenoid m?

A

thyroid cartilage

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Q

Insertion of lateral thyroartyenoid m?

A

muscular process of arytenoid cartilage

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Q

Action of lateral thyroarytenoid m?

A

relaxes TVF

Q

Origin of mylohyoid m?

A

inner surface of mandible (mylohyoid groove)

Q

Insertion of mylohyoid m?

A

hyoid bone

Q

Action of mylohyoid m?

A

move hyoid up and forward

Q

Insertion of digastric m?

A

hyoid bone

Q

Origin of anterior belly of digastric m?

A

inside, midline of mandible

Q

Action of anterior belly of digastric m?

A

moves hyoid up and forward

Q

Origin of posterior belly of digastric m?

A

mastoid process of temporal bone

Q

Action of posterior belly of digastric m?

A

moves hyoid up and back

Q

Origin of stylohyoid m?

A

styloid process of temporal bone

Q

Insertion of stylohyoid m?

A

hyoid bone

Q

Action of stylohyoid m?

A

move hyoid up and back

Q

Origin of geniohyoid m?

A

inside, midline of mandible

Q

Insertion of geniohyoid m?

A

hyoid bone

Q

Action of geniohyoid m?

A

moves hyoid up and forward

Q

Innervation of geniohyoid m?

A

CN XII (Hypoglossal)

Q

Innervation of all intrinsic muscles of the larynx?

A

CN X (Vagus)

Q

Innervation of mylohyoid m?

A

CN V (Trigeminal)

Q

Innervation of anterior belly of digastric m?

A

CN V (Trigeminal)

Q

Innervation of posterior belly of digastric m?

A

CN VII (Facial)

Q

Innervation of stylohyoid m?

A

CN VII (Facial)

Q

Origin of sternohyoid m?

A

inside the sternum

Q

Insertion of sternohyoid m?

A

hyoid bone

Q

Action of sternohyoid m?

A

move larynx down

Q

Origin of sternothyroid m?

A

inside the sternum

Q

Insertion of sternothyoid m?

A

oblique line of the thyroid cartilage

Q

Action of sternothyroid m?

A

move larynx down

Q

Origin of the omohyoid m?

A

scapula bone

Q

Insertion of the omohyoid m?

A

hyoid bone

Q

Action of the omohyoid m?

A

move larynx down