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a; trapezius e or h?

extension, rotation, and lateral flexion of head, hypaxial

o; capitis extensor group

cervical and thoracic vertebrae

i; capitis extensor group

occipital region of skull

a; capitis extensor group e or h?

extension, lateral flexion, and rotation of head, epaxial

o; sternocleidomastoid

manubrium and medial third of clavicle

i; sternocleidomastoid

mastoid process

a; sternocleidomastoid

flexion, lateral flexion, and rotation of head

o; temporalis

temporal fossa


coronoid process

a; temporalis

elevation of mandible

o; masseter

zygomatic arch

i; masseter

lateral ramus and mandible angle

a; masseter


attachment pterygoideus and action

sphenoid and mandible, gliding jaw


medial to mastoid process, hyoid

i; digastricus

mandibular symphysis

a; digastricus

depression of mandible

antagonist of digastricus

masseter and temporalis

a; frontalis

wrinkle forehead

a; occipitalis

draws scalp back

a; orbicularis oris

close mouth, pucker lips

a; orbicularis oculi

close eyes, blink, wink

a; risorius


a; zygomaticus

lifts upper lip

a; platysma


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