Appendicular Muscle Actions Flashcards
muscles that position the pec girdle
pec minor, subclavius, serratus anterior, levator scapulae, rhomboid minor, rhomboid major, trapezius
pec minor
depresses and protracts shoulder
rotates scapula down
elevates ribs
subclavius
depresses and protracts shoulder
serratus anterior
protracts shoulder
rotates scapula up
levator scapulae
elevates scapula
rhomboid minor
adducts and rotates scapula downward
rhomboid major
adducts and rotates scapula downward
trapezius
elevates, retracts, depresses, rotates scapula upward
elevates clavicle
extends neck
rotator cuff muscles
suprapinatus, infraspinatus, teres minor, subscapularis
supraspinatus
abducts shoulder
infraspinatus
laterally rotates shoulder
teres minor
laterally rotates shoulder
subscapularis
medially rotates shoulder
intertubercular groove muscles
pec major, teres major, lat dorsi
pec major
flexes, adducts, medially rotates shoulder
teres major
extends, adducts, and medially rotates shoulder
lat dorsi
extends, adducts, medially rotates shoulder
broadest muscle
muscles that move arm
deltoid, coracobrachialis
deltoid
abducts, flexes, extends, medially and laterally rotates shoulder
coracobrachialis
adducts and flexes shoulder
elbow flexors
biceps brachii, brachialis, brachioradialis
biceps brachii
flexes elbow
flexes shoulder
supinates forearm
brachialis
flexes elbow
brachioradialis
flexes elbow
elbow extensors
aconeus, triceps brachii
aconeus
extends elbow
triceps brachii
extends elbow
pronators/supinators
pronator quadratus, pronator teres, supinator
wrist and finger flexors
flex carpi radialis, flex carpi ulnaris, palm longus, flex digitorum superficialis, flex digitorum profundus, flex pollicis longus
wrist and finger extensors
(all have “extensor” before it)
ext carpi radialis longus, ext carpi radialis brevis, ext carpi ulnaris, ext digitorum, ext pollicis brevis, ext indicis, ext digiti minimi
gluteal muscles
gluteus maximus, gluteus medius, gluteus minimis, tensor fasciae latae
glut maximus
extends and laterally rotates hip
glut medius
abducts and medially rotates hip
glut minimus
abducts and medially rotates hip
tensor fasciae latae
flexes and medially rotates hip
deep hip rotators
(all laterally rotate hip)
piriformis, sup gemellus, obturator internus, inf gemellus, obt externus, quadratus femoris
hip adductors
(all adduct, flex, and medially rotate the hip)
adductor longus, add brevus, add magnus, pectineus, gracilis (also flexes knee)
hip flexors
iliopsoas, iliacus, psoas major
knee flexors
sartorius, popliteus
sartorius
flexes and laterally rotates hip
flexes knee
popliteus
flexes knee
hip extensors and knee flexors
hamstrings
hamstrings
biceps femoris, semimembranosus, semitendinosus
knee extensors
quads
quads
rectus femoris (also flexes hip), vastus intermedius, vastus lateralis, vastus medialis
dorsiflexors
tibitalis anterior
plantar flexors (extension)
gastrocnemius, fibularis brevis, fibularis longus, plantaris, soleus, tibialis posterior
toe flexors (actual flexion)
flexor digitorum longus, flexor hallucis longus
toe extensors
extensor digitorum longus, extensor hallucis longus