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trunk and neck muscl

deltoid arm abduction
levator scapulae ventralis elevates/adducts scapula
scalene elevates first two ribs, flexes and rotates neck
subscapularis prime medial rotator of humerus, stabilizes shoulder joint
supraspinatus part of rotator cuff muscle, stablizer of shoulder joing
infraspinatus part of rotator cuff, stablizes shoulder
sternocleidomastoid prime mover of head flexion, rotation head when one side acts alone
mylohyoid helps in swallowing-moves tounge
digastric opens mouth, depresses mandible
int. intercostals depresses ribs
errector spinae(O&I) O:sacrum I:ribs/skull. extend vertebral column, flexes laterally
latissimus dorsi arm extension, arm adductor-swimming muscle
trapezius adducts and depresses scapula
rhomboideus elevate,adduct,rotate scapula downward to square shoulder/paddle a canoe
rectus abdominus(O&I) flexes/rotates lumbar region of vertebral column O:pubis, I: ribs and xiphoid process
internal oblique flexes verterbral column, compresses abdomen
tendinous intersection creates 6pack
pectoralis major primary arm flexor, rotates arm medially-climbing, throwing, pushing
pectoralis minor moves scapula forward and downward
serratus anterior abducts and rotates scapula upward, boxers punch
external intercostals elevate ribs during inspiration
masseter(O&I) closes mouth, elevates mandilbe O:zygomatic process of maxilla, I:angle and ramus of mandible
sternohyoid helps in swallowing.moves tounge
temporalis(O&I) elevates and retracts mandible O:temporal fossa, I: coronoid process of mandible
orbicularis oculi closes eye.blinks
platysma depresses/lowers mandible, pulls lower lip to grimace
buccinator compresses cheek to suck straw
frontalis raises eyebrows
corrugator supercilli pulls eyebrows together
zygomaticus major and minor smile
orbicularis oris closes and protrudes lips
Created by: hannad