Muscles Of Anterior Neck

Front 1

sternocleidomastoid m

Back 1

principal m of anterior neck
occurs on both sides of neck
attaches to sternum, clavicle, and mastoid process of temporal bone
a: flex neck (both), bends head toward shoulder (one)

Front 2

suprahyoid mm

Back 2

group of neck mm that originate superior to, and act on, hyoid bone

Front 3

suprahyoid mm
(digastric m)

Back 3

2 parts: anterior belly and posterior belly
a: elevates hyoid or depresses mandible

Front 4

suprahyoid mm
(mylohyoid m)

Back 4

elevates hyoid bone or depresses mandible

Front 5

suprahyoid mm
(geniohyoid m)

Back 5

depresses mandible, elevates larynx, retract hyoid bone

Front 6

suprahyoid mm
(stylohyoid m)

Back 6

elevates hyoid bone and larynx

Front 7

infrahyoid mm

Back 7

group that arise inferior to hyoid bone and actions depress that bone and larynx

Front 8

infrahyoid
(omohyoid)

Back 8

two bellies that meet at central tendon attached to clavicle and first rib

Front 9

infrahyoid
(sternohyoid)

Back 9

originates on sternal end of clavicle

Front 10

infrahyoid
(sternothyroid)

Back 10

arises on manubrium of sternum and inserts on thyroid cartilage of larynx
depresses bone and elevates larynx