😘 Muscles of mastication (temporomandibular joint) and facial expression WITH ACTION 😘

frontalis

Epicranialis (1 of 2), frontal belly

protract scalp

occipitalis

epicranialis (2 of 2), occipital belly

retract scalp

temporalis

elevate/retract mandible

orbicularis oculi

constrict palpebral fissure (close eye)

levator palpebrae superioris

elevate upper eyelid

nasalis

abduct nostrils

orbicularis oris

onstrict oral fissure (purse lips), protrude lips (kissing/duckface muscle)

zygomaticus major/minor

elevate/abduct corners of mouth

depressor labii ingerioris

depress, abduct lower lip

depressor anguli oris

depress, abduct corner of mouth

mentalis

elevate and protrude lower lip (pout?)

risorius

buccinator

masseter

elevate, protract mandible

genioglossus

depress, abduct tongue

hyoglossus

depress tongue

styloglossus

elevate, protract tongue

digastric (anterior and posterior bellies)

depress mandible, elevate larynx

platysma

depress corners of mouth and skin along jawline

geniohyoid

elevate and protract larynx

mylohyoid

elevates floor of mouth (in deglutition)

stylohyoid

elevate, retract larynx

omohyoid (superior and inferior bellies)

depress hyoid

sternohyoid

depress hyoid

thyrohyoid

depress hyoid

sternothyroid

depress larynx

cricothyroid

sternocleidomastoid

rotate head, flex neck

splenius capitis

extend neck

scalenus anterior (scalene bundle 1 of 3)

flex neck

scalenus medius (scalene bundle 2 of 3)

flex neck

scalenus posterior (scalene bundle 3 of 3)

flex neck