Appendicular Muscle Actions

Question 1

muscles that position the pec girdle

Answer 1

pec minor, subclavius, serratus anterior, levator scapulae, rhomboid minor, rhomboid major, trapezius

Question 2

pec minor

Answer 2

depresses and protracts shoulder
rotates scapula down
elevates ribs

Question 3

subclavius

Answer 3

depresses and protracts shoulder

Question 4

serratus anterior

Answer 4

protracts shoulder

rotates scapula up

Question 5

levator scapulae

Answer 5

elevates scapula

Question 6

rhomboid minor

Answer 6

adducts and rotates scapula downward

Question 7

rhomboid major

Answer 7

adducts and rotates scapula downward

Question 8

trapezius

Answer 8

elevates, retracts, depresses, rotates scapula upward
elevates clavicle
extends neck

Question 9

rotator cuff muscles

Answer 9

suprapinatus, infraspinatus, teres minor, subscapularis

Question 10

supraspinatus

Answer 10

abducts shoulder

Question 11

infraspinatus

Answer 11

laterally rotates shoulder

Question 12

teres minor

Answer 12

laterally rotates shoulder

Question 13

subscapularis

Answer 13

medially rotates shoulder

Question 14

intertubercular groove muscles

Answer 14

pec major, teres major, lat dorsi

Question 15

pec major

Answer 15

flexes, adducts, medially rotates shoulder

Question 16

teres major

Answer 16

extends, adducts, and medially rotates shoulder

Question 17

lat dorsi

Answer 17

extends, adducts, medially rotates shoulder

broadest muscle

Question 18

muscles that move arm

Answer 18

deltoid, coracobrachialis

Question 19

deltoid

Answer 19

abducts, flexes, extends, medially and laterally rotates shoulder

Question 20

coracobrachialis

Answer 20

adducts and flexes shoulder

Question 21

elbow flexors

Answer 21

biceps brachii, brachialis, brachioradialis

Question 22

biceps brachii

Answer 22

flexes elbow
flexes shoulder
supinates forearm

Question 23

brachialis

Answer 23

flexes elbow

Question 24

brachioradialis

Answer 24

flexes elbow

Question 25

elbow extensors

Answer 25

aconeus, triceps brachii

Question 26

aconeus

Answer 26

extends elbow

Question 27

triceps brachii

Answer 27

extends elbow

Question 28

pronators/supinators

Answer 28

pronator quadratus, pronator teres, supinator

Question 29

wrist and finger flexors

Answer 29

flex carpi radialis, flex carpi ulnaris, palm longus, flex digitorum superficialis, flex digitorum profundus, flex pollicis longus

Question 30

wrist and finger extensors

Answer 30

(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

Question 31

gluteal muscles

Answer 31

gluteus maximus, gluteus medius, gluteus minimis, tensor fasciae latae

Question 32

glut maximus

Answer 32

extends and laterally rotates hip

Question 33

glut medius

Answer 33

abducts and medially rotates hip

Question 34

glut minimus

Answer 34

abducts and medially rotates hip

Question 35

tensor fasciae latae

Answer 35

flexes and medially rotates hip

Question 36

deep hip rotators

Answer 36

(all laterally rotate hip) | piriformis, sup gemellus, obturator internus, inf gemellus, obt externus, quadratus femoris

Question 37

hip adductors

Answer 37

(all adduct, flex, and medially rotate the hip) | adductor longus, add brevus, add magnus, pectineus, gracilis (also flexes knee)

Question 38

hip flexors

Answer 38

iliopsoas, iliacus, psoas major

Question 39

knee flexors

Answer 39

sartorius, popliteus

Question 40

sartorius

Answer 40

flexes and laterally rotates hip | flexes knee

Question 41

popliteus

Answer 41

flexes knee

Question 42

hip extensors and knee flexors

Answer 42

hamstrings

Question 43

hamstrings

Answer 43

biceps femoris, semimembranosus, semitendinosus

Question 44

knee extensors

Answer 44

quads

Question 45

quads

Answer 45

rectus femoris (also flexes hip), vastus intermedius, vastus lateralis, vastus medialis

Question 46

dorsiflexors

Answer 46

tibitalis anterior

Question 47

plantar flexors (extension)

Answer 47

gastrocnemius, fibularis brevis, fibularis longus, plantaris, soleus, tibialis posterior

Question 48

toe flexors (actual flexion)

Answer 48

flexor digitorum longus, flexor hallucis longus

Question 49

toe extensors

Answer 49

extensor digitorum longus, extensor hallucis longus