Suprahyoid Muscles

Question 1

What is the origin of stylohyoid?

Answer 1

Styloid process of temporal bone

Question 2

What is the origin of mylohyoid and geniohyoid?

Answer 2

Mandible

Question 3

What is the insertion for digastric, stylohyoid, mylohyoid, and geniohyoid?

Answer 3

Hyoid bone

Question 4

What do digastric, stylohyoid, mylohyoid, and geniohyoid all do?

Answer 4

Elevate hyoid bone

Question 5

Besides elevating the hyoid, what else does digastric do?

Answer 5

Depress mandible

Question 6

Besides elevating the hyoid, what else does mylohyoid do?

Answer 6

Raise floor of mouth during swallowing

Question 7

Besides elevating the hyoid, what else does geniohyoid do?

Answer 7

Draw hyoid forward

Question 8

What is the innervation for posterior belly of digastric and stylohyoid?

Answer 8

Facial nerve

Question 9

What is the innervation for anterior belly of digastric and mylohyoid?

Answer 9

Trigeminal nerve (V3)

Question 10

What is the innervation of geniohyoid?

Answer 10

C1 via branch hitchhiking w/ hypoglossal nerve

Question 11

What is the origin for the posterior belly of digastric? Anterior belly?

Answer 11

P: temporal bone (mastoid notch)
A: mandible