Extrinsic Laryngeal Muscles

Question 1

These 2 muscles elevate the hyoid bone or depress the mandible

Answer 1

Mylohyoid and Geniohyoid

Question 2

This muscle draws the hyoid up and forward

Answer 2

Anterior belly of the Digastricus

Question 3

This muscle originates in the upper border of the scapula and inserts into the intermediate tendon

Answer 3

Omohyoid (inferior head)

Question 4

These three muscles depress the hyoid

Answer 4

Sternohyoid, Omohyoid, Thyrohyoid

Question 5

This muscle originates in the greater horn of the hyoid bone and inserts in the sides of the tongue

Answer 5

Hyoglossus

Question 6

This muscle originates in the styloid process of the temporal bone and inserts into the corpus of the hyoid

Answer 6

Stylohyoid muscle

Question 7

This muscle originates in the inner surface of hte mandible near the symphysis & originates in the mastoid process of the temporal bond to insert into the hyoid

Answer 7

Digastricus

Question 8

This muscle originates in the thyroid lamina and inferior horn and inserts into the psterior pharyngeal raphe

Answer 8

Thyropharyngeus of inferior pharyngeal constrictor

Question 9

The Sternothyroid is innervated by teh

Answer 9

XII (hypoglossal) and spinal nerves C1 & C2

Question 10

This muscle draws the hyoid up and back

Answer 10

Posterior belly of the Digastricus

Question 11

This muscle moves the hyoid posteriorly

Answer 11

Stylohyoid

Question 12

The Geniohyoid is innervated by

Answer 12

XII (hypoglossal nerve) and C1 spinal nerve

Question 13

This muscle elevates the hyoid and depresses the tongue

Answer 13

Hyglossus

Question 14

The Superior Omohyoid is innervated by the

Answer 14

Superior ramus of ansa cervicalis from C1

Question 15

This muscle originates in the inner surface of the mandible at symphysis and inserts into the tongue and corpus hyoid

Answer 15

Genioglossus

Question 16

The anterior fibers of this muscle converge at the median fibrous raphe

Answer 16

Mylohyoid

Question 17

These two muscles are innervated by the Motor branch of the XII Cranial nerve

Answer 17

Hyoglossus and Genioglossus

Question 18

This muscle constricts the pharynx and eleveates the larynx

Answer 18

Thyropharyngeus of the Inferior Constrictor

Question 19

the posterior Digastricus is innervated by the

Answer 19

VII (facial) nerve

Question 20

This muscle originates at the mental spines in the inner surface of the mandible and inserts into the corpus of the hyoid bone

Answer 20

Geniohyoid

Question 21

This muscle originates in the intermediate tendo and inserts into the lower border of the hyoid

Answer 21

Omohyoid (superior head)

Question 22

The Mylohyoid is innervated by the

Answer 22

V (trigeminal) nerve

Question 23

Digastricus has two parts that insert into the hyoid by means of the _____

Answer 23

intermediate tendon

Question 24

Together, these muscles elevate the hyoid bone

Answer 24

Digastricus (anterior and posterior)

Question 25

This muscle originates in the manubrium sterni and clavicle and inserts into the inferior margin of the hyoid corpus

Answer 25

Sternohyoid

Question 26

The Inferior Omohyoid is innervated by the

Answer 26

ansa cervicalis, spinal C2-C3

Question 27

The stylohyoid muscle is innervated by the

Answer 27

VIIth CN: Facial

Question 28

This muscle originates in the oblique line of the thyroid cartilage and inserts into the greater horn of the hyoid

Answer 28

Thyrohyoid

Question 29

The Hyoglossus is innervated by

Answer 29

motor branch of the XII Hypoglossal CN

Question 30

This muscle depresses the thyroid cartilage

Answer 30

Sternothyroid

Question 31

The Thyropharyngeus Muscle of the Inferior Constrictor is innervated by

Answer 31

X (vagus), recurrent laryngeal nerve (external laryngeal branch) & X (vagus) superior laryngeal nerve (pharyngeal branch)

Question 32

The Genioglossus is innervated by the

Answer 32

motor branch of the XII (hypoglossal) CN

Question 33

The Thyrohyoid is innervated by the

Answer 33

XII (hypoglossal) nerve and C1

Question 34

This muscle originates in the manubrium sterni and the first costal cartilage then inserts into the oblique line of the thyroid cartilage

Answer 34

Sternothyroid

Question 35

The Sternohyoid is innervated by the

Answer 35

Ansa cervicalis from C1-C3

Question 36

The anterior Digastricus is innervated by

Answer 36

V (trigeminal) nerve

Question 37

This muscle originates in the inner surface of the mandible and inserts into the corpus of the hyoid

Answer 37

Mylohyoid