Muscles of Phonation

Question 1

Origin of oblique interarytenoid m?

Answer 1

muscular process of arytenoid cartilage

Question 2

Insertion of oblique interarytenoid m?

Answer 2

apex of opposite arytenoid cartilage (x shape)

Question 3

Action of oblique interarytenoid m?

Answer 3

adduct glottis

Question 4

Origin of transverse interarytenoid m?

Answer 4

lateral surface of arytenoid cartilage

Question 5

Insertion of transverse interarytenoid m?

Answer 5

lateral surface of opposite arytenoid

Question 6

Action of transverse interarytenoid m?

Answer 6

adduct glottis

Question 7

Origin of lateral cricoarytenoid m?

Answer 7

superior/lateral surface of cricoid cartilage

Question 8

Insertion of lateral cricoarytenoid m?

Answer 8

muscular process of arytenoid cartilage

Question 9

Action of lateral cricoarytenoid m?

Answer 9

adduct glottis

Question 10

Origin of posterior cricoarytenoid m?

Answer 10

posterior of cricoid cartilage

Question 11

Insertion of posterior cricoarytenoid m?

Answer 11

muscular process of arytenoid cartilage

Question 12

Action of posterior cricoarytenoid m?

Answer 12

abduct glottis

Question 13

Origin of cricothyroid m?

Answer 13

anterior surface of cricoid cartilage

Question 14

Insertion of cricothyroid m?

Answer 14

1) vertical part- lower surface of thyroid cartilage

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

Question 15

Action of cricothyroid m?

Answer 15

tense and lengthen TVF

Question 16

Origin of vocalis (medial thyroarytenoid) m?

Answer 16

thyroid cartilage

Question 17

Insertion of vocalis m?

Answer 17

vocal process of arytenoid cartilage

Question 18

Action of vocalis m?

Answer 18

tenses TVF

Question 19

Origin of lateral thyroarytenoid m?

Answer 19

thyroid cartilage

Question 20

Insertion of lateral thyroartyenoid m?

Answer 20

muscular process of arytenoid cartilage

Question 21

Action of lateral thyroarytenoid m?

Answer 21

relaxes TVF

Question 22

Origin of mylohyoid m?

Answer 22

inner surface of mandible (mylohyoid groove)

Question 23

Insertion of mylohyoid m?

Answer 23

hyoid bone

Question 24

Action of mylohyoid m?

Answer 24

move hyoid up and forward

Question 25

Insertion of digastric m?

Answer 25

hyoid bone

Question 26

Origin of anterior belly of digastric m?

Answer 26

inside, midline of mandible

Question 27

Action of anterior belly of digastric m?

Answer 27

moves hyoid up and forward

Question 28

Origin of posterior belly of digastric m?

Answer 28

mastoid process of temporal bone

Question 29

Action of posterior belly of digastric m?

Answer 29

moves hyoid up and back

Question 30

Origin of stylohyoid m?

Answer 30

styloid process of temporal bone

Question 31

Insertion of stylohyoid m?

Answer 31

hyoid bone

Question 32

Action of stylohyoid m?

Answer 32

move hyoid up and back

Question 33

Origin of geniohyoid m?

Answer 33

inside, midline of mandible

Question 34

Insertion of geniohyoid m?

Answer 34

hyoid bone

Question 35

Action of geniohyoid m?

Answer 35

moves hyoid up and forward

Question 36

Innervation of geniohyoid m?

Answer 36

CN XII (Hypoglossal)

Question 37

Innervation of all intrinsic muscles of the larynx?

Answer 37

CN X (Vagus)

Question 38

Innervation of mylohyoid m?

Answer 38

CN V (Trigeminal)

Question 39

Innervation of anterior belly of digastric m?

Answer 39

CN V (Trigeminal)

Question 40

Innervation of posterior belly of digastric m?

Answer 40

CN VII (Facial)

Question 41

Innervation of stylohyoid m?

Answer 41

CN VII (Facial)

Question 42

Origin of sternohyoid m?

Answer 42

inside the sternum

Question 43

Insertion of sternohyoid m?

Answer 43

hyoid bone

Question 44

Action of sternohyoid m?

Answer 44

move larynx down

Question 45

Origin of sternothyroid m?

Answer 45

inside the sternum

Question 46

Insertion of sternothyoid m?

Answer 46

oblique line of the thyroid cartilage

Question 47

Action of sternothyroid m?

Answer 47

move larynx down

Question 48

Origin of the omohyoid m?

Answer 48

scapula bone

Question 49

Insertion of the omohyoid m?

Answer 49

hyoid bone

Question 50

Action of the omohyoid m?

Answer 50

move larynx down