head and neck muscles

Masseter: prime mover in jaw closure

Temporalis; jaw closure

Digastric: opens mouth and depress mandible

Platysma: tenses skin of neck

Sternocleidomastoid: flexes and laterally moves head

Epicranius

-dark blue is occipital belly: pulls scalps

-light blue is frontal belly: raises eyebrows

Corrugator supercilii: pulls eyebrows together

Orbicularis oculi: closes eyes

Zygomaticus: pulls lateral muscles of mouth up/ smiling

Orbicularis oris: closes lips

Buccinator:compresses cheek

Splenius:extends or hyperextends head

Stylohyoid: elevates and retracts hyoid

Temporalis: closes jaws

Masseter: prime mover of jaw

Orbicularis oris: closes lips

Buccinator: compresses cheeks

Buccinator: compresses cheek