Muscles of Anterior Cervical Region- Suprahyoid Muscles

Question 0

Insertion of Mylohyoid

Answer 0

Mylohyoid raphe and body of hyoid

Question 1

Origin of Mylohyoid

Answer 1

Mylohyoid line of mandible

Question 2

Innervation of Mylohyoid

Answer 2

Nerve to mylohyoid, a branch of inferior alveolar nerve

Question 3

Action of Mylohyoid

Answer 3

Elevates hyoid, floor of mouth and tongue during swallowing and speaking

Question 4

Origin of Geniohyoid

Answer 4

Inferior mental spine of mandible

Question 5

Insertion of Geniohyoid and stylohyoid

Answer 5

Body of hyoid

Question 6

Innervation of Geniohyoid

Answer 6

C1 via hypoglossal nerve (CN XIII)

Question 7

Action of Geniohyoid

Answer 7

Pulls hyoid antero superiorly, shortens floor of mouth, widens pharynx

Question 8

Origin of Stylohyoid

Answer 8

Styloid process of temporal bone

Question 9

Innervation of Stylohyoid

Answer 9

Stylohyoid branch of facial nerve

Question 10

Action of Stylohyoid

Answer 10

Elevates and retracts hyoid, thus elongating floor of mouth

Question 11

Origin of Digastic

Answer 11

Anterior Belly: digastric fossa of mandible

Posterior Belly: mastoid notch of temporal bone

Question 12

Insertion of Digastric

Answer 12

Intermediate tendon to body and greater horn of hyoid

Question 13

Innervation of Diagastric

Answer 13

Anterior belly: nerve to mylohyoid, a branch of alveolar nerve
Posterior Belly: digastric branch of facial nerve

Question 14

Action of Digastric

Answer 14

Working with infrahyoid muscles, depresses mandible against resistance, elevates and steadies hyoid during swallowing and speaking