Appendicular Muscles: Actions ONLY

Question 1

Pectoralis Minor

Answer 1

Depresses and pulls scapula anteriorly

Question 2

Serratus Anterior

Answer 2

Draws scapula forward along thoracic wall, rotates scapula.

Question 3

Trapezius

Answer 3

Elevates, depresses, rotates adducts scapula.

Question 4

Deltoid

Answer 4

Abducts; flexes and medially rotates; extends and laterally rotates arm.

Question 5

Latissimus Dorsi

Answer 5

Extends, adducts, and medially rotates arm.

Question 6

Pectoralis Major

Answer 6

Flexes, medially rotates, and adducts arm.

Question 7

Supraspinatus

Answer 7

Arm abduction

Question 8

Infraspinous

Answer 8

Laterally rotates arm

Question 9

Teres Major

Answer 9

Adducts extends and medially rotates the arm.

Question 10

Teres Minor

Answer 10

Laterally rotates arm

Question 11

Subcapularis

Answer 11

Medially rotates arm

Question 12

Biceps Brachii (long head and short head)

Answer 12

Flexes arm and forearm and supinates forearm.

Question 13

Brachialis

Answer 13

Flexes forearm

Question 14

Long head of Triceps Brachii

Answer 14

Extends arm and forearm extension.

Question 15

Lateral head of triceps brachii

Answer 15

Forearm extension

Question 16

Medial head of triceps brachii

Answer 16

forearm extension

Question 17

Pronator Teres

Answer 17

Pronates arm

Question 18

Flexor carpi radialis

Answer 18

Flexes and abducts hand

Question 19

Palmaris Longus

Answer 19

Flexes hand

Question 20

Flexor Carpi Ulnaris

Answer 20

Flexes and adducts hand

Question 21

Flexor digitorum superficialis

Answer 21

Flexes phalanges

Question 22

Flexor digitorum profundus

Answer 22

Flexes phalanges

Question 23

Brachioradialis

Answer 23

Flexes forearm

Question 24

Extensor Carpi radialis longus

Answer 24

extends and abducts hand

Question 25

Extensor carpi radialis brevis

Answer 25

Extends and abducts hands

Question 26

Extensor Digitorum

Answer 26

Extends fingers and hand

Question 27

Extensor carpi ulnaris

Answer 27

Extends and adducts hand

Question 28

Gluteus Maximus

Answer 28

Extends and laterally rotates hip

Question 29

Gluteus Medius

Answer 29

Abducts thigh at hip

Question 30

Biceps femoris
(short head)

Answer 30

Flexes and laterally rotates leg at knee

Question 31

Biceps femoris Long Head

Answer 31

Extends thigh at the hip

Question 32

Semitendinosus

Answer 32

Extends thigh at hip; flexes and medially rotates leg at knee.

Question 33

Semimembranosus

Answer 33

Extends thigh at hip; flexes and medially rotates leg at knee.

Question 34

Gracilis

Answer 34

Adducts thigh at hip; flexes leg at knee.

Question 35

Adductor Longus

Answer 35

Adduct and flexes thigh at hip

Question 36

Adductor Brevis

Answer 36

Adducts thigh at hip

Question 37

adductor magnus

Answer 37

Adducts and flexes thigh at hip

Question 38

iliopsoas

Answer 38

flexes hip

Question 39

Sartorius

Answer 39

flexes, laterally rotates thigh; flexes and medially rotates leg at the knee.

Question 40

Quadriceps Femoris (all four muscles, rectus femoris, vastus laterlis, vastus medialis, vastus intermedius)

Answer 40

extend leg at knee

Question 41

Quadriceps femoris- rectus femoris only

Answer 41

Flexes thigh at hip

Question 42

Pectineus

Answer 42

Flexes, adducts thigh.

Question 43

Tensor Fascia Latae

Answer 43

flexes and abducts thigh

Question 44

Tibialis Anterior

Answer 44

Dorsiflexes and inverts the foot; extends toe

Question 45

Extensor digitorum longus

Answer 45

dorsiflexes foot and extends toes.

Question 46

Fibularis (peroneus) longus

Answer 46

Plantar flexes and everts foot

Question 47

Fibularis (peroneus brevis)

Answer 47

Plantar flexes and everts foot.

Question 48

Gastrocnemius

Answer 48

Plantar flexes the foot weak flexor of leg at knee.

Question 49

Soleus

Answer 49

Plantar flexes the foot

Question 50

Flexor Digitorum Longus

Answer 50

Plantar flexes and inverts floor; flexes toes.