Suprahyoid Muscles

Question 1

What four muscles make up the Suprahyoid Muscles

Answer 1

1. ) Mylohyoid
2. ) Geniohyoid
3. ) Sylohyoid
4. ) Digastric

Question 2

O of Mylohyoid

Answer 2

1.) Mylohyoid line of the mandible

Question 3

I of Mylohyoid

Answer 3

Body of the hyoid bone

Question 4

Action of Mylohoid

Answer 4

Elevates…

1. ) Hyoid bone
2. ) Tongue
3. ) Floor of mouth
   - —for speaking and swallowing

Question 5

Innervation of Mylohyoid

Answer 5

Nerve to Mylohyoid

—Branch of inferior alveolar nerve (CN V3)

Question 6

O of Geniohyoid

Answer 6

Inferior Mental Spine of Mandible

Question 7

I of Geniohyoid

Answer 7

Body of hyoid bone

Question 8

Action of Geniohyoid

Answer 8

Raises hyoid bone anterosuperiorally

—Shortening and widening the floor of the mouth

Question 9

Innervation of Geniohyoid

Answer 9

C1 via Hypoglossal nerve (CN XII)

Question 10

O of Stylohyoid

Answer 10

Soloed Process of Temporal Bone

Question 11

I of Stylohyoid

Answer 11

Body of the hyoid bone

Question 12

Action of Stylohyoid

Answer 12

Elevates and retracts hyoid bone

—-Elongating floor of mouth

Question 13

Innervation of Stylohyoid bone

Answer 13

Cervical Branch of Facial Nerve CN VII

Question 14

O of Digastric

Answer 14

Anterior Belly
1.) Digastric Fossa of Mandible
Posterior Belly
1.) Mastoid Notch of temporal bone

Question 15

I of Digastric

Answer 15

Intermediate tendon to body of hyoid and greater wing of sphenoid bone

Question 16

Action of Digastric

Answer 16

1. ) Depresses mandible

2. ) Elevates, Retracts, & Steadies hyoid bone during speaking and swallowing

Question 17

Innervation of Digastric

Answer 17

Anterior belly - Nerve to Mylohyoid

Posterior belly - Cervical Branch of Fascial Neve (CN VII)

Question 18

True or False,

All suprahyoid muscles elevate the hyoid bone in some way, yet depress the mandible

Answer 18

True

—All muscles elevate the hyoid bone & depress the mandible in one way or another

Question 19

What Suprahyoid muscles retract the hyoid bone

Answer 19

1.) Stylohyoid

Question 20

What Suprahyoid muscle elongates the floor of the mouth

Answer 20

1.) Stylohyoid

Question 21

What Suprahyoid muscle shortens and widens the floor of the mouth?

Answer 21

1.) Geniohyoid

Question 22

What Suprahyoid muscle elevates the tongue, floor of mouth for speaking and swallowing

Answer 22

1.) Mylohyoid

Question 23

What Suprahyoid muscles are innervated by the Nerve to the Mylohyoid?

Answer 23

1. ) Mylohyoid

2. ) Anterior belly of Digastric

Question 24

What Suprahyoid muscles are innervated by Cervical Branches of the facial nerve (CN VII)

Answer 24

1. ) Stylohyoid

2. ) Posterior belly of Digastric

Question 25

What Suprahyoid muscles are innervated by C1 via Hypoglossal Nerve (CN XII)

Answer 25

1.) Geniohyoid