UL Actions

Question 1

abductor digiti minimi

Answer 1

abducts the 5th digit

Question 2

abductor pollicis brevis

Answer 2

abducts thumb

Question 3

abductor pollicis longus

Answer 3

abducts the thumb at carpometacarpal joint

Question 4

adductor pollicis

Answer 4

adducts the thumb

Question 5

anconeus

Answer 5

extends the forearm

Question 6

biceps brachii

Answer 6

flexes the forearm, flexes arm (long head), supinates

Question 7

brachialis

Answer 7

flexes the forearm

Question 8

brachioradialis

Answer 8

flexes the elbow, assists in pronation & supination

Question 9

coracobrachialis

Answer 9

flexes and adducts the arm

Question 10

deltoid

Answer 10

abducts arm; anterior fibers flex & medially rotate the arm; posterior fibers extend & laterally rotate the arm

Question 11

dorsal interosseous (hand)

Answer 11

flex the metacarpophalangeal joint, extend the proximal and distal interphalangeal joints of digits 2-4, abduct digits 2-4 (abduction of digits in the hand is defined as movement away from the midline of the 3rd digit)

Question 12

extensor carpi radialis brevis

Answer 12

extends the wrist; abducts the hand

Question 13

extensor carpi radialis longus

Answer 13

extends the wrist; abducts the hand

Question 14

extensor carpi ulnaris

Answer 14

extends the wrist; adducts the hand

Question 15

extensor digiti minimi

Answer 15

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 5th digit

Question 16

extensor digitorum

Answer 16

extends the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints of the 2nd-5th digits; extends wrist

Question 17

extensor indicis

Answer 17

extends the index finger at the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

Question 18

extensor pollicis brevis

Answer 18

extends the thumb at the metacarpophalangeal joint

Question 19

extensor pollicis longus

Answer 19

extends the thumb at the interphalangeal joint

Question 20

flexor carpi radialis

Answer 20

flexes the wrist, abducts the hand

Question 21

flexor carpi ulnaris

Answer 21

flexes wrist, adducts hand

Question 22

flexor digiti minimi brevis (hand)

Answer 22

flexes the carpometacarpal and metacarpophalangeal joints of the 5th digit

Question 23

flexor digitorum profundus

Answer 23

flexes the metacarpophalangeal, proximal interphalangeal and distal interphalangeal joints

Question 24

flexor digitorum superficialis

Answer 24

flexes the metacarpophalangeal and proximal interphalangeal joints

Question 25

flexor pollicis brevis

Answer 25

flexes the carpometacarpal and metacarpophalangeal joints of the thumb

Question 26

flexor pollicis longus

Answer 26

flexes the metacarpophalangeal and interphalangeal joints of the thumb

Question 27

infraspinatus

Answer 27

laterally rotates the arm

Question 28

interosseous, dorsal (hand)

Answer 28

flex the metacarpophalangeal joint, extend the proximal and distal interphalangeal joints of digits 2-4, abduct digits 2-4 (abduction of digits in the hand is defined as movement away from the midline of the 3rd digit)

Question 29

interosseous, palmar

Answer 29

flexes the metacarpophalangeal, extends proximal and distal interphalangeal joints and adducts digits 1, 2, 4, & 5 (adduction of the digits of the hand is in reference to the midline of the 3rd digit)

Question 30

latissimus dorsi

Answer 30

extends the arm and rotates the arm medially

Question 31

levator scapulae

Answer 31

elevates the scapula

Question 32

lumbrical

Answer 32

flex the metacarpophalangeal joints, extend the proximal and distal interphalangeal joints of digits 2-5

Question 33

opponens digiti minimi

Answer 33

opposes the 5th digit

Question 34

opponens pollicis

Answer 34

opposes the thumb

Question 35

palmar interosseous

Answer 35

flexes the metacarpophalangeal, extends proximal and distal interphalangeal joints and adducts digits 1, 2, 4, & 5 (adduction of the digits of the hand is in reference to the midline of the 3rd digit)

Question 36

palmaris brevis

Answer 36

draws the skin of the ulnar side of the hand toward the center of the palm

Question 37

palmaris longus

Answer 37

flexes the wrist

Question 38

pectoralis major

Answer 38

flexes and adducts the arm, medially rotates the arm

Question 39

pectoralis minor

Answer 39

draws the scapula forward, medialward, and downward

Question 40

pronator quadratus

Answer 40

pronates the forearm

Question 41

pronator teres

Answer 41

pronates the forearm

Question 42

rhomboideus major

Answer 42

retracts, elevates and rotates the scapula inferiorly

Question 43

rhomboideus minor

Answer 43

retracts, elevates and rotates the scapula inferiorly

Question 44

serratus anterior

Answer 44

it draws the scapula forward; the inferior fibers rotate the scapula superiorly

Question 45

serratus posterior inferior

Answer 45

pulls down lower ribs

Question 46

serratus posterior superior

Answer 46

elevates the upper ribs

Question 47

subclavius

Answer 47

draws the clavicle (and hence the shoulder) down and forward

Question 48

subscapularis

Answer 48

medially rotates the arm; assists extention of the arm

Question 49

supinator

Answer 49

supinates the forearm

Question 50

supraspinatus

Answer 50

abducts the arm (initiates abduction)

Question 51

teres major

Answer 51

adducts the arm, medially rotates the arm, assists in arm extension

Question 52

teres minor

Answer 52

laterally rotates the arm

Question 53

trapezius

Answer 53

elevates and depresses the scapula (depending on which part of the muscle contracts); rotates the scapula superiorly; retracts scapula

Question 54

triceps brachii

Answer 54

extends the forearm; the long head extends and adducts arm