Summary Muscles of the Neck

Muscles of the Neck
Two groups of muscles are associated with the anterior aspect of the neck:

1. The suprahyoid muscles: located superior to the hyoid bone

2. The infrahyoid muscles: located inferior to the hyoid bone



1. Suprahyoid muscles;
1. Digastric Muscle,

2. Stylohyoid Muscle,

3. Mylohyoid Muscle.

Actions:

Elevate the hyoid bone, floor of the mouth, and tongue during swallowing.

Nerve supply: Ansa cervicalis (C1,2, 3)



2. Infrahyoid muscles:
(“strap” muscles because of their ribbon like appearance.

1. Omohyoid Muscle,

2. Sternohyoid Muscle and

3. Thyrohyoid Muscle

Actions:

Depress the hyoid bone and some move the larynx during swallowing and
speech.

Nerve supply: mostly by Ansa cervicalis (C1,2 AND 3).