Suprahyoid muscles

Question 1

Suprahyoid muscles
Made up of 4 muscles

Answer 1

Mylohyoid
Geniohyoid
Stylohyoid
Digastric

Question 2

Question 3

Answer 3

mylohyoid

Question 4

mylohyoid origin

Answer 4

mylohyoid line of mandible

Question 5

mylohyoid insertion

Answer 5

mylohyoid raphe and body of hyoid

Question 6

mylohyoid innervation

Answer 6

Nerve to mylohyoid

Question 7

mylohyoid actions

Answer 7

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

Question 8

Answer 8

Geniohyoid

Question 9

Geniohyoid origin

Answer 9

Inferior mental spine of mandible

Question 10

Geniohyoid insertion

Answer 10

Body of hyoid

Question 11

Geniohyoid innervation

Answer 11

C1 - via hypoglossal nerve

Question 12

Geniohyoid actions

Answer 12

Pulls hyoid anterosuperiorly
Shortens floor of mouth
Widens pharynx

Question 13

Answer 13

Stylohyoid

Question 14

Stylohyoid origin

Answer 14

Stylohyoid process of temporal bone

Question 15

Stylohyoid insertion

Answer 15

Body of hyoid

Question 16

Stylohyoid innervation

Answer 16

Stylohyoid branch of facial nerve

Question 17

Stylohyoid action

Answer 17

Elevates and retracts hyoid, thus elongating floor of mouth

Question 18

Answer 18

Digastric

Question 19

Digastric origin

Answer 19

Anterior belly: Digastric fossa of mandible

Posterior belly: mastoid notch of temporal bone

Question 20

Digastric insertion

Answer 20

Intermediate tendon to body and greater horn of hyoid

Question 21

Digastric innervation

Answer 21

Anterior belly: nerve to mylohyoid

Posterior belly: Digastric branch of facial nerve

Question 22

Digastric actions

Answer 22

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