Anterior Neck Muscles - Suprahyoid

Question 1

Digastric Anterior Belly Origin

Answer 1

Digastric fossa of mandible

Question 2

Digastric Anterior Belly Insertion

Answer 2

Intermediate tendon to body and greater horn of hyoid

Question 3

Digastric Anterior Belly Innervation

Answer 3

Nerve to mylohyoid, a branch of inferior alveolar nerve

Question 4

Digastric Posterior Belly Origin

Answer 4

Mastoid notch of temporal bone

Question 5

Digastric Posterior Belly Insertion

Answer 5

Intermediate tendon to body and greater horn of hyoid

Question 6

Digastric Posterior Belly Innervation

Answer 6

Digastric branch of (preparotid) facial nerve (CN VII)

Question 7

Digastric Action (Anterior and Posterior bellies)

Answer 7

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

Question 8

Mylohyoid origin

Answer 8

Mylohyoid line of mandible

Question 9

Mylohyoid insertion

Answer 9

Mylohyoid raphe and body of hyoid

Question 10

Mylohyoid innervation

Answer 10

Nerve to mylohyoid, a branch of inferior alveolar nerve (from mandibular nerve, CN V3)

Question 11

Mylohyoid Action

Answer 11

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

Question 12

Stylohyoid Origin

Answer 12

Stylohyoid process of temporal bone

Question 13

Stylohyoid insertion

Answer 13

Body of hyoid

Question 14

Stylohyoid Innervation

Answer 14

Stylohyoid branch of (preparotid) facial nerve (CN VII)

Question 15

Stylohyoid Action

Answer 15

Elevates and retracts hyoid, thus elongating floor of mouth