axial muscle actions Flashcards
epicranius m.
move scalp, wrinkle brow, wiggle ears
orbicularis oculi m.
close eyelids
corrugator supercilii m.
draw eyebrow inferomedially
orbicularis oris m.
close mouth, purse lips
levator labii superioris m.
elevate upper lip
levator anguli oris m.
elevate angle of mouth
zygomaticus major m.
draw upper lip posterosuperiorly
zygomaticus minor m.
draw upper lip superolaterally
depressor labii inferioris m.
depress lower lip
depressor anguli oris m.
depress corner of mouth
nasalis m.
wrinkle nose, dilate nostrils
temporalis m.
elevate mandible
masseter m.
elevate mandible
lateral pterygoid m.
protract/ depress mandible
medial pterygoid m.
elevate mandible, move mandible laterally
platysma
depress lower lip, wrinkle skin of neck and upper chest
sternocleidomastoideus m.
turn head to opposite side, flex joints of cervical vertebrae
pectoralis major m.
flex shoulder joint, adduct superior limb @ shoulder joint, medially rotate superior limb
pectoralis minor m.
draw scapula anteroinferiorly, elevate ribs
serratus anterior m.
rotate scapula, draw scapula forward, elevate ribs
external intercostal mm.
elevate ribs, maintain tension in intercostal spaces
internal intercostal mm.
depress ribs, maintain tension
rectus abdominis m.
draw thorax downward, compress abdomen
external abdominal oblique m.
draw thorax downward, compress abdomen, rotate vertebral column
internal abdominal oblique m.
draw thorax downward, compress abdomen, rotate vertebral column
transversus abdominis m.
compress abdomen
trapezius m.
draw head laterally, draw head posteriorly, rotate scapul
latissimus dorsi m.
adduct superior limb @ shoulder joint, rotate superior limb medially, extend shoulder joint
rhomboideus major m.
retract scapula medially
rhomboideus minor m.
draw scapula toward vertebral column, draw scapula slightly superiorly
levator scapulae m.
elevate scapul
spinalis m.
extend vertebral joints, lateral flexion of vertebral joints
longissimus m.
extend vertebral joints, lateral flexion of vertebral joints
iliocostalis m.
extend vertebral joints, lateral flexion of vertebral joints
