Forearm

Question 1

Flexor digitorum profundus origin

Answer 1

Anterior and medial surfaces of the proximal 3/4 of the ulna.

Question 2

Flexor digitorum profundus insertion

Answer 2

Bases of the distal phalanges, palmar surface and second through fifth fingers.

Question 3

Flexor digitorum profundus actions

Answer 3

Flex the second through fifth fingers. Assist to flex the wrist.

Question 4

Flexor digitorum profundus innervation

Answer 4

Median - second and third fingers. Ulnar - fourth and fifth fingers

Question 5

Flexor digitorum superficialis origin

Answer 5

Common flexor tendon from the medial epicondyle of the humerus, the collateral ligament, coronoid process of the ulna, the interosseous membrane and the proximal shaft of the radius.

Question 6

Flexor digitorum superficialis insertion

Answer 6

Sides of the middle phalanges of the second through fifth fingers.

Question 7

Flexor digitorum superficialis actions

Answer 7

Flex the second through fifth fingers

Question 8

Flexor digitorum superficialis innervation

Answer 8

Median

Question 9

Which joints can the fingers flex at?

Answer 9

Metacarpophalangeal and proximal and distal interphalangeal joints

Question 10

Flexor carpi ulnaris origin

Answer 10

Humeral head - Common flexor tendon from the medial epicondyle of the humerus
Ulnar head - Posterior surface of the proximal 2/3 of the ulna

Question 11

Flexor carpi ulnaris insertion

Answer 11

Pisiform, hook of the hamate and the base of the fifth metacarpal

Question 12

Flexor carpi ulnaris actions

Answer 12

Flex and adduct the wrist at the radiocarpal joint, assist to flex the elbow.

Question 13

Flexor carpi ulnaris innervation

Answer 13

Ulnar nerve

Question 14

Palmaris longus origin

Answer 14

Common flexor tendon from the medial epicondyle of the humerus.

Question 15

Palmaris longus insertion

Answer 15

Flexor retinaculum and the palmar aponeurosis

Question 16

Palmaris longus actions

Answer 16

Tense the palmar fascia, flex the wrist at the radiocarpal joint, may assist to flex the elbow.

Question 17

Palmaris longus innervation

Answer 17

Median nerve

Question 18

Flexor carpi radialis origin

Answer 18

Common flexor tendon from medial epicondyle of the humerus

Question 19

Flexor carpi radialis insertion

Answer 19

Bases of second and third metacarpals

Question 20

Flexor carpi radialis actions

Answer 20

Flex and abduct the wrist at the radiocarpal joint. May assist to flex the elbow.

Question 21

Flexor carpi radialis innervation

Answer 21

Median nerve

Question 22

Extensor indicis origin

Answer 22

Posterior surface of the distal shaft of the ulna and the interosseous membrane.

Question 23

Extensor indicis insertion

Answer 23

Tendon of the extensor digitorum at the level of the second metacarpal

Question 24

Extensor indicis actions

Answer 24

Extend and adduct the second finger. Mas assist to extend the wrist.

Question 25

Extensor indicis innervation

Answer 25

Radial nerve

Question 26

Extensor digitorum origin

Answer 26

Common extensor tendon from the lateral epicondyle of humerus

Question 27

Extensor digitorum insertion

Answer 27

Bases of middle and distal phalanges of the second through fifth fingers.

Question 28

Extensor digitorum actions

Answer 28

Extend the second through fifth fingers. Assist to extend the wrist.

Question 29

Extensor digitorum innervation

Answer 29

Radial

Question 30

Extensor carpi ulnaris origin

Answer 30

Common extensor tendon from the lateral epicondyle of the humerus

Question 31

Extensor carpi ulnaris insertion

Answer 31

Base of the fifth metacarpal

Question 32

Extensor carpi ulnaris actions

Answer 32

Extend and adduct the wrist at the radiocarpal joint.

Question 33

Extensor carpi ulnaris innervation

Answer 33

Radial nerve

Question 34

Extensor carpi radialis brevis origin

Answer 34

Common extensor tendon from the lateral epicondyle of the humerus

Question 35

Extensor carpi radialis brevis insertion

Answer 35

Base of the third metatarsal

Question 36

Extensor carpi radialis brevis actions

Answer 36

Extend and abduct the wrist, assist to flex the elbow.

Question 37

Extensor carpi radialis brevis innervation

Answer 37

Radial nerve

Question 38

Extensor carpi radialis longus origin

Answer 38

Distal third of the lateral supracondylar ridge of the humerus

Question 39

Extensor carpi radialis longus insertion

Answer 39

Base of the second metacarpal

Question 40

Extensor carpi radialis longus actions

Answer 40

Extend and abduct the wrist, assist to flex the elbow.

Question 41

Extensor carpi radialis longus innervation

Answer 41

Radial nerve

Question 42

Brachialis origin

Answer 42

Distal half of the anterior surface of the humerus

Question 43

Brachialis insertion

Answer 43

Tuberosity and coronoid process of the ulna.

Question 44

Brachialis actions

Answer 44

Flex the elbow

Question 45

Brachialis innervation

Answer 45

Musculocutaneous and a small branch from the radial nerve.

Question 46

Anconeus actions

Answer 46

Extend the elbow

Question 47

Anconeus origin

Answer 47

Lateral epicondyle of the humerus

Question 48

Anconeus insertion

Answer 48

Olecranon process and posterior, proximal surface of the ulna.

Question 49

Anconeus innervation

Answer 49

Radial

Question 50

Pronator teres actions

Answer 50

Pronate the forearm and assist to flex the elbow

Question 51

Pronator teres origin

Answer 51

Common flexor tnedon from the medial epicondyle of the humerus and the coronoid process of the ulna.

Question 52

Pronator teres insertion

Answer 52

Middle of lateral surface of the radius

Question 53

Pronator teres innervation

Answer 53

Median

Question 54

Pronator quadratus actions

Answer 54

Pronate the forearm

Question 55

Pronator quadratus origin

Answer 55

Medial, anteior surface of the distal ulna.

Question 56

Pronator quadratus insertion

Answer 56

Lateral, anterior surface of the distal radius

Question 57

Pronator quadratus innervation

Answer 57

Median

Question 58

Supinator origin

Answer 58

Lateral epicondyle of the humerus, radial collateral ligament, annular ligament and supinator crest of the ulna

Question 59

Supinator insertion

Answer 59

Anterior, lateral surface of the proximal third of the radial shaft.

Question 60

Supinator innervation

Answer 60

Radial

Question 61

Adductor pollicis actions

Answer 61

Adduct the thumb and assist to flex the thumb.

Question 62

Adductor pollicis origin

Answer 62

Capitate, second and third metacarpals

Question 63

Adductor pollicis insertion

Answer 63

Base of proximal phalanx of the thumb

Question 64

Adductor pollicis innervation

Answer 64

Ulnar

Question 65

Flexor pollicis longus actions

Answer 65

Flex the thumb and assist to flex the wrist.

Question 66

Flexor pollicis longus origin

Answer 66

Anterior surface of the radius and interosseous membrane

Question 67

Flexor pollicis longus insertion

Answer 67

Base of distal phalanx of the thumb

Question 68

Flexor pollicis longus innervation

Answer 68

Median

Question 69

Extensor pollicis brevis actions

Answer 69

Extend the thumb and abduct the wrist

Question 70

Extensor pollicis brevis origin

Answer 70

Posterior surface of the radius and interosseous membrane

Question 71

Extensor pollicis brevis insertion

Answer 71

Base of proximal phalanx of the thumb.

Question 72

Extensor pollicis brevis innervation

Answer 72

Radial

Question 73

Extensor pollicis longus actions

Answer 73

Extend the thumb and abduct the wrist

Question 74

Extensor pollicis longus origin

Answer 74

Posterior surface of the ulna and interosseous membrane

Question 75

Extensor pollicis longus insertion

Answer 75

Base of the distal phalanx of the thumb

Question 76

Brachioradialis actions

Answer 76

Flex the elbow and assist to pronate and supinate the forearm.

Question 77

Brachioradialis origin

Answer 77

Proximal 2/3 of the lateral supracondylar ridge of the humerus

Question 78

Brachioradialis insertion

Answer 78

Styloid process of the radius