Test 2 - Muscles of Back and Arms

Question 1

Trapezius

Answer 1

Back of shoulder/neck
Extends head
Raises, rotates, rectracts scapula

Question 2

Latissimus dorsi

Answer 2

Big broad muscle of lower back
Pulls from spine up to shoulder
Arm extension
Adducts arm

Question 3

Infraspinatus

Answer 3

Pulls from scapula to point of shoulder vertically
Rotator cuff of shoulder
Lateral rotation of humerus

Question 4

Teres minor and major

Answer 4

Deep and inferior to infraspinatus
Clavicle to point of shoulder/humerus
Extends, rotates, adducts humerus

Question 5

Supraspinatus

Answer 5

Rotator cuff muscle
From top of scapula to humerus
Initiates abduction of humerus

Question 6

Levator scapulae

Answer 6

Underneath trapezius
From top of spine (neck) to scapula
Elevates and adducts scapula
Shoulder shrugs
Flexes neck side to side

Question 7

Triceps brachii

Answer 7

Three headed muscle at top of arm
Under arm
Forearm extensor

Question 8

Biceps brachii

Answer 8

Top of arm
2 headed muscle
Flexion of elbow and supination of forearm
Bicep curls and turning corkscrews

Question 9

Brachioradialis

Answer 9

From elbow to thumb on lateral side of arm

Forearm flexion

Question 10

Brachialis

Answer 10

Underneath biceps brachii and across elbow on medial side of arm
Forearm flexion

Question 11

Pronator teres

Answer 11

From medial part of elbow to wrist (most middle)

Pronates forearm

Question 12

Flexor carpi radialis

Answer 12

From medial part of elbow to wrist (2nd from middle)
Wrist flexor
Abducts hand

Question 13

Palmaris longus

Answer 13

From medial part of elbow to wrist (3rd from middle)

Tenses skin of palm

Question 14

Flexor carpi ulnaris

Answer 14

From medial part of elbow to wrist (most outer)
Flexor of wrist
Adducts hand

Question 15

Flexor digitorum superficialis

Answer 15

Underneath elbow to wrist muscles
Wraps forearm
Flexes wrist and middle fingers

Question 16

Flexor pollicis longus

Answer 16

Wraps forearm
Under elbow to wrist muscles
Closer to wrist than digitorum superficialis
Flexes thumb

Question 17

Extensor carpi radialis longus

Answer 17

Wraps from above elbow to wrist

Extends and abducts wrist

Question 18

Extensor carpi radialis brevis

Answer 18

From elbow to wrist
Next to radialis longus
Extends and abducts wrist

Question 19

Extensor digitorum

Answer 19

From elbow to top of hand
Next to radialis brevis
Finger extension

Question 20

Extensor carpi ulnaris

Answer 20

From elbow to base of hand
Next to extensor digitorum
Extends and adducts wrist

Question 21

Extensor pollicis longus and brevis

Answer 21

From ulna and radius to thumb

Extend thumb

Question 22

Abductor pollicis longus

Answer 22

From radius and ulna to thumb
Above extensor poliicis muscles
Abducts and extends thumb

Question 23

Supinator

Answer 23

From elbow to ulna

Supinates forearm