Arm OIAN

Question 1

Flexor carpi radialis

Answer 1

O: Medial epicondyle
I: proximal ends of second and third MC bones
A: wrist and elbow flexion, radial deviation
N: Median

Question 2

Pronator teres

Answer 2

O:medial epicondyle; anterior surface of ulna below coronoid process
I: midpoint of the lateral surface of the shaft of the radius
A: pronation (PM), flexion of elbow
N: median

Question 3

Flexor carpi ulnaris

Answer 3

O: medial epicondyle
I: pisioform, proximal end of 5th MC bone, hamate via psi-hamate ligament
A: flexion of wrist and elbow, ulnar deviation (PM)
N: ulnar

Question 4

Palmaris longus

Answer 4

O: meidal epicondyle
I: palmar aponeurosis
A: weak flexor of wrist and elbow
N: median

Question 5

Flexor digitorum profundus

Answer 5

O: anterior surface of ulna
I: base of the distal phalanges of medial 4 fingers
A: wrist flexion (PM), MCP, PIP and DIP flexion
N: medial fibers = ulnar, lateral fibers = median

Question 6

Flexor digitorum superficialis

Answer 6

O: medial epicondyle, anterior surface of radius, sometimes anterior surface of ulna
I: either side of middle phalanges of medial 4 fingers
A: help in flexion of wrist and elbow. MCP and PIP flexion
N: median

Question 7

Pronator quadratus

Answer 7

attachments:
-distal quarter of radius and ulna
A: pronates forearm
N: median

Question 8

Flexor policis longus

Answer 8

O: medial epicondyle (sometimes), anterior surface of radius
I: distal phalanx of thumb
A: flexion of thumb (PM)
N: median

Question 9

Anconeus

Answer 9

O: lateral epicondyle
I: upper 1/3 of posterior surface of ulna
A: extension of elbow
N: radial

Question 10

brachioradialis

Answer 10

O: lateral supracondylar ridge
I: styloid process of radius
A: flexion of elbow (PM from 90-110 degrees)
N: radial

Question 11

Extensor carpi radialis longus

Answer 11

O: lateral supracondylar ridge
I: proximal end of 2nd MC
A: extension of wrist and elbow, radial deviation
N: radial

Question 12

Extensor carpi radialis brevis

Answer 12

O: lateral epicondyle
I: proximal end of 3rd MC
A: extension of wrist and elbow, radial deviation
N: deep radial

Question 13

Extensor digitorum

Answer 13

O: lateral epicondyle
I: DDE (indirectly to middle and distal phalange)
A: PM for extension of wrist, MCP, PIP and DIP
N: posterior interosseous

Question 14

Extensor digiti minimi

Answer 14

O: lateral epicondyle
I: DDE of 5th digit
A: extension of wrist and joints of 5th finger
N: posterior interosseous

Question 15

Extensor carpi ulnaris

Answer 15

O: lateral epicondyle
I: proximal end of 5th MC
A: extension of wrist and elbow; adduction
N: posterior interosseous

Question 16

Supinator

Answer 16

O: 
ulnar head = supinator crest of ulna
humeral head = lateral epicondyle 
I: lateral aspect of middle 1/3 of radius 
A: supination
N: deep radial

Question 17

Abductor pollicis longus

Answer 17

O: shaft of ulna
I: proximal end of 1st MC
A: abduction of thumb (PM)
N: posterior interosseous

Question 18

Extensor indicis

Answer 18

O: shaft of ulna
I: DDE of 2nd finger
A: extension of 2nd finger
N: posterior interosseous

Question 19

Extensor pollicis longus

Answer 19

O: shaft of ulna
I: distal phalanx of thumb
A: extension of thumb (PM), assists in radial deviation and wrist flexion
N: posterior interossous

Question 20

Extensor pollicis brevis

Answer 20

O: posterior surface of radius and IO membrane
I: proximal phalanx of thumb
A: radial deviation, extension of thumb
N: posterior interosseous

Question 21

Flexor pollicis brevis

Answer 21

O: lateral carpal bones and flexor retinaculum
I: proximal phalanx
A: flexion of thumb 
N: 
superficial head - median nerve
deep head - ulnar nerve

Question 22

Abductor pollicis brevis

Answer 22

O: scpahoid and trapezium; flexor aponeurosis
I: proximal phalanx
A: abduction of thumb
N: median nerve

Question 23

Adductor pollicis

Answer 23

O:
oblique head and distal head - distal carpal bones and 2nd and 3rd MC
transverse head
oblique and distal heads - base of proximal phalanx of thumb
A: PM for adduction of thumb
N: deep ulnar (both heads)

Question 24

Opponens pollicis

Answer 24

O: lateral carpal bones
I: lateral surface of first MC bone
A: PM opposition of thumb
N: median n.

Question 25

Abductor digiti minimi

Answer 25

O: medial carpal bones and tendon of FCU
I: proximal phalanx of 5th finger and sometimes 5th MC
A: abduction of 5th digit
N: deep ulnar nerve

Question 26

Palmaris brevis

Answer 26

O: palmar fascia, palmari longus, flexor retinaculum
I: deep surface of skin on medial side of hand
A: making hand into cup
N: superficial ulnar nerve

Question 27

Opponens digiti minimi

Answer 27

O: medial carpal bones and flexor retinaculum
I: medial side of 5th MC bone
A: opposition of 5th finger
N: deep ulnar

Question 28

Flexor digiti minimi

Answer 28

O: medial carpal bones and flexor retinaculum
I: proximal end of proximal phalanx of 5th finger
A: helps in flexion
N: deep ulnar

Question 29

Palmar interosseous

Answer 29

O: 2, 4 and 5th MC bones
I: DDE of corresponding fingers
A: adduction of fingers
N: deep ulnar

Question 30

Lumbricals

Answer 30

O: FDP
I: DDE of corresponding layers
A: flexion of MCP, extension of PIP and DIP
N: lateral 2 = medial n., medial 2 = deep ulnar n.

Question 31

Dorsal interosseous

Answer 31

O: all MC’s
I: DDE of fingers
A: abduction of fingers
N: deep ulnar