Looks like no one added any tags here yet for you.
Masseter
O: Zygomatic Arch
I: Angular process of the mandible
A: Elevates the lower jaw
Digastric
O: Jugular and mastoid process of the skull
I: Mandible
A: Depresses the lower jaw
Mylohyoid
O: Mandible
I: Median raphe
A: Raise the floor of the mouth; bring hyoid forward
Sternohyoid
O: First costal cartilage in median ventral
line; Posterior surface of manubrium of the sternum
I: Body of hyoid; Lower margin of the hyoid bone
A: Draws the hyoid posteriorly
Sternothyroid
O: Sternum (with sternohyoid)
I: Thyroid cartilage of the larynx
A: Pull larynx posteriorly
Sternomastoid
O: Median raphe; manubrium
I: Mastoid process of the skull
A: Turn the head; depress head on the neck