Practical 2

Question 1

What muscle’s origin is the distal half of anterior surface of humerus?

Answer 1

Brachialis

Question 2

What muscles originate in the lateral supracondylar ridge of humerus?

Answer 2

1. Brachioradialis

2. Extensor carpi radialis longus

Question 3

What muscle’s origin is the medial, anterior surface of distal ulna?

Answer 3

Pronator quadratus

Question 4

What muscle’s origin is the medial epicondyle of the humerus, common flexor tendon and coronoid process of the ulna?

Answer 4

Pronator teres

Question 5

What muscle’s origin is the radial collateral ligament, annular ligament and supinator crest of the ulna?

Answer 5

Supinator

Question 6

What muscle’s insertion is the lateral, anterior surface of distal radius?

Answer 6

Pronator quadratus

Question 7

What muscle’s insertion is the lateral surface of proximal shaft of the radius?

Answer 7

Supinator

Question 8

What muscle’s insertion is the middle of lateral surface of the radius?

Answer 8

Pronator teres

Question 9

What muscle’s insertion is the styloid process of radius?

Answer 9

Brachioradialis

Question 10

What muscle’s insertion is the tuberosity & coronoid process of ulna?

Answer 10

Brachialis

Question 11

Origin: Anterior & medial surfaces of proximal 3/4 of ulna

Answer 11

Flexor digitorum profundus

Question 12

Origin: Common extensor tendon from the lateral epicondyle of humerus (3)

Answer 12

1 Extensor carpi radialis brevis
2 Extensor carpi ulnaris
3 Extensor digitorum

Question 13

Origin: Common flexor tendon from medial epicondyle (3)

Answer 13

1 Flexor carpi radialis
2 Flexor carpi ulnaris
3 Palmaris longus

Question 14

Origin: Common flexor tendon from medial epicondyle, ulnar collateral ligament, coronoid process of ulna & shaft of radius

Answer 14

Flexor digitorum superficialis

Question 15

Insertions: Base of 5th metacarpal

Answer 15

Extensor carpi ulnaris

Question 16

Insertions: Bases of second & third metacarpals

Answer 16

Flexor carpi radialis

Question 17

Insertions: Base of second metacarpal

Answer 17

Extensor carpi radialis longus

Question 18

Insertions: Base of third metacarpal

Answer 18

Extensor carpi radialis brevis

Question 19

Insertions: By 4 tendons into bases of distal phalanges, palmar surface of second through fifth fingers

Answer 19

Flexor digitorum profundus

Question 20

Insertions: By 4 tendons into sides of middle phalanges of second through fifth fingers

Answer 20

Flexor digitorum superficialis

Question 21

Insertions: Flexor retnaculum & palmar aponeurosis

Answer 21

Palmaris longus

Question 22

Insertions: Middle & distal phalanges of second through fifth fingers

Answer 22

Extensor digitorum

Question 23

Insertions: Pisiform

Answer 23

Flexor carpi ulnaris

Question 24

Insertions: Base of first metacarpal

Answer 24

Abductor pollicis longus

Question 25

Insertions: Base of proximal phalange of thumb

Answer 25

Adductor pollicis

Question 26

Insertions: Distal phalange of thumb (2)

Answer 26

1 Extensor pollicis longus | 2 Flexor pollicis longus

Question 27

Insertions: Entire length of first metacarpal bone, radial side

Answer 27

Opponens pollicis

Question 28

Origins: Anterior surface of radius & interosseous membrane

Answer 28

Flexor pollicis longus

Question 29

Origins: Capitate, second & third metacarpals

Answer 29

Adductor pollicis

Question 30

Origins: Flexor retinaculum & tubercle of the trapezium

Answer 30

Opponins pollicis

Question 31

Origins: Posterior surface of radius & ulna, & interosseous membrane

Answer 31

Abductor pollicis longus

Question 32

Origins: Posterior surface of ulna & interosseous membrane

Answer 32

Extensor pollicis longus

Question 33

Name the extrinsic muscles on the anterior side of the arm.

Answer 33

1 flexor digitorum superficialis 2 flexor digitorum profundus 3 flexor pollicis longus

Question 34

Name the posterior extrinsic muscles of the arm.

Answer 34

``` 1 extensor digitorum 2 extensor digiti minimi 3 extensor indicis 4 extensor pollicis longus 5 extensor pollicis brevis 6 abductor pollicis longus ```

Question 35

Name the deepest hypothenar muscle. Is it intrinsic or extrinsic? What is its innervation?

Answer 35

Opponens digiti minimi is an intrinsic muscle & is innervated by the ulnar nerve.

Question 36

Name the deep muscle of the thenar emininence. Is it intrinsic or extrinsic? What is its innervation?

Answer 36

Opponens pollicis is an intrinsic muscle & is innervated by the median nerve.

Question 37

Name the muscles that create flexion of the humeroulnar & humeroradial joints.

Answer 37

1 Biceps brachii 2 Brachialis 3 Brachioradialis

Question 38

Name the muscles that assist with flexion of the humeroulnar & humeroradial joints.

Answer 38

1 Flexor carpi radialis 2 Flexor carpi ulnaris 3 Palmaris longus 4 Pronator teres

Question 39

Name the extensors that are synergists for flexion of the humeroulnar & humeroradial joints.

Answer 39

1 Extensor carpi radialis longus | 2 Extensor carpi radialis brevis

Question 40

Name the muscles that extend the humeroulnar & humeroradial joints.

Answer 40

1 Triceps brachii | 2 Anconeus

Question 41

Name the muscles that supinate the proximal & distal radiounlnar joints.

Answer 41

1 Biceps brachii | 2 Supinator

Question 42

Name the muscle that assists with supination of proximal & distal radiounlnar joints.

Answer 42

Brachioradialis

Question 43

Name the muscles that pronate the proximal & distal radiounlnar joints.

Answer 43

1 Pronator teres | 2 Pronator quadratus

Question 44

Name the muscle that assists with pronation of proximal & distal radiounlnar joints.

Answer 44

Brachioradialis

Question 45

Name the muscles that extend the radiocarpal joint.

Answer 45

1 Extensor carpi radialis longus 2 Extensor carpi radialis brevis 3 Extensor carpi ulnaris

Question 46

Name the muscles that assist with extension of the radiocarpal joint.

Answer 46

1 Extensor digitorum | 2 Extensor indicis

Question 47

Name the muscles that flex the radiocarpal joint.

Answer 47

1 Flexor carpi radialis 2 Flexor carpi ulnaris 3 Palmaris longus 4 Flexor digitorum superficialis

Question 48

Name the muscles that assist with flexion of the radiocarpal joint.

Answer 48

1 Flexor digitorum profundus | 2 Flexor pollicis longus

Question 49

Name the muscles that perform abduction (radial deviation) of the radiocarpal joint.

Answer 49

``` 1 Extensor carpi radialis longus 2 Extensor carpi radialis brevis 3 Extensor carpi pollicis longus 4 Extensor carpi pollicis brevis 5 Flexor carpi radialis 6 Abductor pollicis longus ```

Question 50

Name the muscles that adduct (ulnar deviation) of the radiocarpal joint.

Answer 50

1 Extensor carpi ulnaris | 2 Flexor carpi ulnaris

Question 51

Name the the muscles that extend the 2nd through 5th fingers.

Answer 51

1 Extensor digitorum | 2 Lumbricals

Question 52

Name the muscles that flex the 2nd through 5th fingers.

Answer 52

1 Flexor digitorum superficialis 2 Flexor digitorum profundus 3 Lumbricals

Question 53

Name the muscle that assists with extension & flexion of fingers 2-4.

Answer 53

Dorsal interossei

Question 54

Name the muscle that assists with extension & flexion of fingers 2, 4, & 5.

Answer 54

Palmar interossei

Question 55

Name the muscle that extends the second finger.

Answer 55

Extensor indicis

Question 56

Name the muscle that flexes the 5th finger.

Answer 56

Flexor digiti minimi brevis

Question 57

Name the muscles that flex the first carpometacarpal & metacarpophalangeal joints.

Answer 57

1 Flexor pollicis longus | 2 Flexor pollicis brevis

Question 58

Name the muscles that assist with flexion of the first carpometacarpal & metacarpophalangeal joints.

Answer 58

1 Adductor pollicis | 2 Palmar interossei

Question 59

Name the muscle that provides opposition for the first carpometacarpal & metacarpophalangeal joints.

Answer 59

Opponens pollicis

Question 60

Name the muscles that assist with opposition for the first carpometacarpal & metacarpophalangeal joints.

Answer 60

1 Flexor pollicis brevis | 2 Abductor pollicis brevis

Question 61

Name the muscles that extend the first carpometacarpal & metacarpophalangeal joints.

Answer 61

1 Extensor pollicis longus 2 Extensor pollicis brevis 3 Abductor pollicis longus

Question 62

Name the muscle that assists with the extension of the first carpometacarpal & metacarpophalangeal joints.

Answer 62

Palmar interossei

Question 63

Name the nerve that innervates all of the extensor muscles of the arm.

Answer 63

Radial nerved

Question 64

Name the nerve that innervates the brachialis.

Answer 64

Musclulocutaneous nerve

Question 65

Name the nerve that innervates the brachioradialis.

Answer 65

Radial nerve

Question 66

Name the nerve that innervates the flexor carpi radialis

Answer 66

Median nerve

Question 67

Name the nerve that innervates the anconeus.

Answer 67

Radial nerve

Question 68

Name the nerve that innervates the palmaris longus.

Answer 68

Median nerve

Question 69

Name the nerve that innervates the supinator.

Answer 69

Radial nerve

Question 70

Name the nerve that innervates the flexor digitorum superficialis.

Answer 70

Median nerve

Question 71

Name the nerve that innervates the abductor pollicis longus.

Answer 71

Radial nerve

Question 72

Name the nerve that innervates the pronator teres

Answer 72

Median nerve

Question 73

Name the nerve that innervates the flexor carpi ulnaris.

Answer 73

Ulnar nerve

Question 74

Name the nerve that innervates the 1st & 2nd flexor digitorum profundus.

Answer 74

Median Nerve

Question 75

Name the nerve that innervates the 3rd & 4th flexor digitorum profundus.

Answer 75

Ulnar nerve

Question 76

Name the nerve that innervates the pronator quadraqatus.

Answer 76

Median nerve

Question 77

Name the nerve that innervates the adductor pollicis

Answer 77

Ulnar nerve

Question 78

Name the nerve that innervates the flexor pollicis longus

Answer 78

Median nerve

Question 79

Name the nerve that innervates the opponens pollicis

Answer 79

Median nerve