Actions

Question 1

What is the action of Biceps Brachii

Answer 1

flexion and supination of the forearm
flexion of the arm

Question 2

What is the action of Coracobrachialis

Answer 2

flexion and adduction of the arm

Question 3

What is the action of Brachialis

Answer 3

flexion of the forearm

Question 4

What is the action of Triceps Brachii

Answer 4

extension of the forearm and arm

Question 5

What is the action of Anconeus

Answer 5

extension of the forearm

Question 6

What is the action of Pronator Teres

Answer 6

pronation of the forearm

Question 7

What is the action of Palmaris Longus

Answer 7

flexion of the hand

Question 8

What is the action of Flexor Carpi Radialis

Answer 8

flexion and abduction (radial deviation) of the hand

Question 9

What is the action of Flexor Carpi Ulnaris

Answer 9

flexion and adduction (ulnar deviation) of the hand

Question 10

What is the action of Flexor Digitorum Superficialis

Answer 10

flexion of the middle phalanx of each of the four fingers

Question 11

What is the action of Flexor Digitorum Profundus

Answer 11

flexion of the distal phalanx of each of the four fingers

Question 12

What is the action of Flexor Pollicis Longus

Answer 12

flexion of the distal phalanx of the thumb

Question 13

What is the action of Pronator Quadratus

Answer 13

pronation of the forearm and hand

Question 14

What is the action of Brachioradialis

Answer 14

flexion of the forearm

Question 15

What is the action of Extensor Carpi Radialis Longus

Answer 15

extension and abduction (radial deviation) of the hand

Question 16

What is the action of Extensor Carpi Radialis Brevis

Answer 16

extension of the hand

Question 17

What is the action of Extensor Digitorum

Answer 17

extension of each of the four middle fingers

Question 18

What is the action of Extensor Digiti Minimi

Answer 18

extension and abduction of the little finger

Question 19

What is the action of Extensor Carpi Ulnaris

Answer 19

extension and adduction (ulnar deviation) of the hand

Question 20

What is the action of Supinator

Answer 20

supination of the forearm and hand

Question 21

What is the action of Abductor Pollicis Longus

Answer 21

abduction and extension of the thumb

Question 22

What is the action of Extensor Pollicis Brevis

Answer 22

extension of the proximal phalanx of the thumb

Question 23

What is the action of Extensor Pollicis Longus

Answer 23

extension of the distal phalanx of the thumb

Question 24

What is the action of Extensor Indicis

Answer 24

extension of the index finger

Question 25

What is the action of the Lumbricales

Answer 25

extension of the interphalangeal joints of the medial four digits, flexion of the metacarpalphalangeal joints

Question 26

What is the action of Abductor Pollicis Brevis

Answer 26

abduction of the thumb

Question 27

What is the action of Opponens Pollicis

Answer 27

opposition of the thumb

Question 28

What is the action of Flexor Pollicis Brevis

Answer 28

flexion of the thumb, aids in opposition and adduction

Question 29

What is the action of Adductor Pollicis

Answer 29

adduction and flexion of the thumb

Question 30

What is the action of Palmaris Brevis

Answer 30

stabilization of the skin of the palm for gripping

Question 31

What is the action of Abductor Digiti Minimi

Answer 31

abduction of the little finger

Question 32

What is the action of Flexor Digiti Minimi Brevis

Answer 32

flexion of the little finger

Question 33

What is the action of Opponens Digiti Minimi

Answer 33

opposition of the little finger to the thumb

Question 34

What is the action of Palmar Interossei

Answer 34

adduction of the respective finger; index, ring, and little fingers; flexion of the metacarpalphalangeal joints, extension of the interphalangeal joints

Question 35

What is the action of Dorsal Interossei

Answer 35

abduction of index, middle, and ring fingers; flexion of the metacarpalphalangeal joints (depending on the insertion #1 may not extend the interphalangeal joints)