Wk 2: Anterior Neck

Question 1

Stylohyoid (suprahyoid)

Answer 1

O: Base of styloid process
I: Greater horns
A: Pulls hyoid bone posterosuperiorly during swallowing
N: Facial N. (CN 7)

Question 2

Digastric (suprahyoid)

Answer 2

O: Anterior belly (digastric fossa), Posterior belly (mastoid process)
I: Tendon bw 2 bellies to body of hyoid bone
A: Elevates hyoid bone and depresses mandible
N: Mylohyoid nerve

Question 3

Mylohyoid (Suprahyoid)

Answer 3

O: Mylohyoid line on mandible
I: Body of hyoid bone
A: Support and elevation of floor of mouth; elevation of hyoid
N: Mylohyoid nerve

Question 4

Geniohyoid (suprahyoid)

Answer 4

O: Inferior mental spine
I: Body of hyoid bone
A: Fixation of mandible; pulls mandible inward
N: Anterior ramus from C1

Question 5

Sternohyoid (infrahyoid)

Answer 5

O: Posterior aspect of sternoclavicular joint
I: Body of hyoid bone
A: Depresses hyoid bone after swallowing
N: Ansa cervicalis

Question 6

Omohyoid (infrahyoid)

Answer 6

O: superior border of scapula
I: body of hyoid bone
A: depresses hyoid bone
N: Anterior rami of C1-C3

Question 7

Thyrohyoid (infrahyoid)

Answer 7

O: thyroid cartilage
I: greater horn of hyoid bone
A: depresses hyoid bone and elevated thyroid cartilage
N: anterior ramus of C1

Question 8

Sternothyroid (infrahyoid)

Answer 8

O: manubrium
I: thyroid cartilage
A: draws larynx (thyroid cartilage downward)
N: Ansa cervicalis

Question 9

Platysma

Answer 9

O: Infra and supraclavicular regions
I: Base of mandible; skin of cheek & angle of mouth
A: draws lateral angle of lips downward, protection of superficial venous drainage/vessels
N: Facial Nerve (CN 7)