Muscle Movements

Question 1

What does the deltoid do?

Answer 1

Abducts, flexes, and rotates arm at shoulder joint

Question 2

What does the trapezius do?

Answer 2

Move the scapula multi-directionally

Question 3

What does the levator scapula do?

Answer 3

Elevates scapula and rotates downward

Question 4

What does the Rhomboid major do?

Answer 4

(a) Elevates and adducts scapula and rotates downward
(b) Stabilizes scapula

Question 5

What does the Pectoralis major do?

Answer 5

(a) Adducts and rotates arm medially at the shoulder
(b) Flexes arm at the shoulder joint

Question 6

What does the Latissimus dorsi

Answer 6

(a) Extends, adducts, and rotates arm medially at the shoulder joint
(b) Draws arm downward and backward

Question 7

What does the Teres major do?

Answer 7

a) Extends arm at the shoulder joint
b) Assists with adduction and rotation of arm medially

Question 8

What does the Coracobrachialis do?

Answer 8

Flexes and adducts arm at shoulder

Question 9

What does the Biceps Brachii do?

Answer 9

1) Flexes arm at the shoulder
2) Flexes and supinates forearm at the elbow

Question 10

What does the Brachialis do?

Answer 10

Flexes forearm at the elbow joint

Question 11

What do the Brachioradialis do?

Answer 11

Flexes forearm at the elbow joint

Question 12

What do the Triceps brachii do?

Answer 12

(1) Extends forearm at the elbow joint (2) Extends arm at shoulder

Question 13

What do the Supinator do?

Answer 13

Supinates forearm

Question 14

What do the Pronator teres do?

Answer 14

Pronates forearm

Question 15

What do the Flexor carpi radialis do?

Answer 15

Flexes and abducts hand at the wrist

Question 16

What do the Flexor carpi ulnaris do?

Answer 16

Flexes and adducts hand at the wrist

Question 17

What do the Palmaris do?

Answer 17

Weakly flexes hand at the wrist joint

Question 18

What do the Flexor digitorum superficialis do?

Answer 18

(1) Flexes hand at wrist
(2) Flexes phalanges of each finger at the PIP joint

Question 19

What do the Flexor digitorum profundus do?

Answer 19

(1) Flexes hand at wrist
(2) Flexes phalanges of each finger at DIP

Question 20

What do the Extensor carpi radialis longus do?

Answer 20

Extends and abducts hand at the wrist joint

Question 21

What do the Extensor carpi ulnaris do?

Answer 21

Extends and adducts hand at the wrist joint

Question 22

What do the Extensor digitorum do?

Answer 22

(1) Extends hand at wrist joint
(2) Extends phalanges of each finger

Question 23

What does the Psoas major do

Answer 23

Flexes and rotates thigh laterally

Question 24

What does the Iliacus do

Answer 24

Flexes and rotates thigh laterally at the hip

Question 25

What does the Gluteus maximus do

Answer 25

(1) Extends and rotates thigh laterally (2) Helps lock knee in extension

Question 26

What does the Gluteus medius do

Answer 26

Abducts and rotates thigh medially

Question 27

What does the Tensor fascia latae do

Answer 27

(1) Flexes and abducts thigh at hip joint (2) Helps lock knee in extension

Question 28

What does the Adductor longus do

Answer 28

Adducts, rotates, and flexes thigh at hip joint

Question 29

What does the Adductor magnus do?

Answer 29

Adducts, flexes, rotates, and extends thigh at the hip joint

Question 30

What does the Piriformis do

Answer 30

External rotation of thigh laterally and abducts

Question 31

What does the Pectineus do?

Answer 31

Flexes and adducts thigh

Question 32

What does the Gracilis do?

Answer 32

(1) Adducts and medially rotates thigh (2) Flexes leg at the knee

Question 33

What does the Rectus femoris do?

Answer 33

(1) Extends the knee (2) Flexes the hip (a) Located anterior to other quadriceps muscles

Question 34

What does the Sartorius do

Answer 34

(1) Flexes the knee (2) Weakly flexes the hip (3) Abducts and laterally rotates the thigh

Question 35

What does the Biceps femoris (hamstrings) do?

Answer 35

(1) Extends thigh at the hip (2) Flexes the leg at the knee joint

Question 36

What does the Semitendinosis do?

Answer 36

(1) Extends the thigh at the hip (2) Flexes leg at the knee

Question 37

What does the Semimembranosis do

Answer 37

(1) Extends the thigh at the hip (2) Flexes leg at the knee

Question 38

What does the Tibialis anterior do

Answer 38

Dorsiflexes and inverts the foot

Question 39

What does the Extensor digitorum longus do

Answer 39

(1) Dorsiflexes and everts the foot (2) Extends toes

Question 40

What does the Fibularis longus do?

Answer 40

Plantarflexes and everts foot

Question 41

What does the Gastrocnemius do

Answer 41

(1) Plantarflexes foot (2) Flexes leg at the knee

Question 42

What does the Soleus do

Answer 42

Plantarflexes foot

Question 43

What does the Tibialis posterior do

Answer 43

Plantarflexes and inverts foot

Question 44

What does the Flexor digitorum longus do

Answer 44

(1) Plantarflexes foot (2) Flexes toes