Insertions of Facial Muscles - BIO 223 LAB

this also includes extra things that i need to know lol

Frontalis

skin of eyebrow and bridge of nose

orbicularis oculi

skin around eyelids

zygomaticus

angle of mouth and upper lip

platysma

mandible and skin of cheek

temporalis

coronoid process of mandible

masseter

lateral surface of mandibular ramus

buccinator

fibers of orbicularis oris

oribicularis oris

lips

deltoid action

abducts and secondarily flexes/extends arm

pectoralis major action

flexes adducts medially rotates the arm

pectoralis major origin

medial clavicle, sternum, costal cartilages 1-7

pectoralis major insertion

humerus

masseter action

chewing (elevates mandible)

buccinator action

helps manipulate food during chewing and expels air through pursed lipse

external intercostals action

inhale

internal intercostals action

exhale

external/internal oblique & rectus abdominis action

compress abdomen, depress ribs, flex or bend vertebral column

transversus abdominis action

compress abdomeno

order of oblique muscles from superficial to deep

external oblique, internal oblique, transversus abdominis, rectus abdominis

what muscle makes up our 6 pack?

rectus abdominis

gluteus maximus action

extension and lateral rotation of hip (squat) - going down is flexion

flexor carpi radialis action

flexion and abduction of wristf

flexor carpi ulnaris action

flexion and ADDuction of wrist