muscles: function Flashcards
sternocleidomastoid
one: rotates face to opposite side
both: flexion of neck
splenius
one: rotates head
both: extension of neck
iliocostalis lumborum
extends vertebral column
external oblique
compresses abdomen
rotates vertebral column
internal oblique
compresses abdomen
rotates vertebral column
transverse abdominus
compresses abdomen
rectus abdominus
flexes vertebral column
pectoralis minor
depresses shoulder
levator scapulae
elevates scapula
rhomboideus
adduction of scapula
serratus anterior
abduction of scapula
trapezius
adduction of scapula
upper fibers elevate scapula
lower fibers depress scapula
pectoralis major
flexion, adduction, medial rotation of arm
deltoid
abduction of arm
anterior fibers flex/medially rotate
posterior fibers extend/laterally rotate
latissimus dorsi
extension, adduction, medial rotation of arm
teres major
extension, adduction, medial rotation of arm
supraspinatus
abducts arm
super abs
infraspinatus
lateral rotation of arm
teres minor
lateral rotation of arm
subscapularis
medial rotation of arm
biceps brachii
flexion of forearm
brachialis
flexion of forearm
brachioradialis
flexion of forearm
triceps brachii
extension of forearm
flexor/pronator group
flexion of wrist/pronation
extensor/supinator group
extension of wrist/supination
gluteus maximus
extension/lateral rotation of thigh
gluteus medius
abduction of thigh
only glut med and tensor fascia lata abducts
med glutes make you tense
tensor fascia lata
tenses fascia lata, abduction of thigh
adductor longus
adduction of thigh
adductor magnus
adduction of thigh
gracilis
adduction of thigh
iliacus
flexion of thigh
psoas
flexion of thigh/lumbar spine
sartorius
flexion/lateral rotation of thigh, weak flexion of lower leg
biceps femoris/semimembranosus/semitendinosus
extension of thigh, flexion of lower leg
rectus femoris
flexion of thigh, extension of lower leg
vastus lateralis/intermedius/medialis
extension of lower leg
all front parts of legs will do either flexion of thigh or extension of the lower leg
gastrocnemius
flexion of lower leg, plantar flexion
soleus
plantar flexion
sun makes buff flexing plants
tibialis anterior
dorsiflexion, inversion of foot
peroneus longus/brevis
plantar flexion, eversion of foot
extensor digitorum longus
eversion of foot, extension of toes
extensor hallucis longus
inversion of foot, extension of big toe