hand myology

Question 1

lumbricals o

Answer 1

1st and 2nd: lateral two tendons of flexor digitorum profundus; 3rd and 4th; medial three tendons of flexor digitorum profundus/ extensor hoos of fingers 2-5

Question 2

palmar interossi (volar) o

Answer 2

sides of metacrapals 2, 4 and 5/extensor hood of all but third finger

Question 3

dorsal interossi o

Answer 3

adjacent sides of all metacarpal/extenosor hood and bases of proximal phalanges of index, middle and ring fingers

Question 4

adductor pollicis o

Answer 4

transverse head- 3rd metacarpal bone

oblique head- capitate and base of 2nd and 3rd metacarpals/base of porximal phalanx and hood of the thumb

Question 5

opponens digiti minimi o

Answer 5

hook of hamate and flexor retinaculm/ shaft of the 5th metacarpal, ulnar surface

Question 6

flexor digiti minimi brevis o

Answer 6

hook of hamate and flexor retinaculum/ base of proximal phalanx of little finger palmar surface

Question 7

aBductor digiti minimi o

Answer 7

pisiform, the pisohamate ligament, and tendon of flexor carpi ulnaris/ base of proximal phalanx of little finger, ulnar surface

Question 8

opponens pollicis o

Answer 8

tubercle of the trapezium and flexor retinaculum/ entire length of the 1st metacarpal on the radial surface

Question 9

flexor pollicis brevis o

Answer 9

superficial head: flexor retinaculum deep head: trapezium tubercle, trapezoid and capitate/ Base of proximal phalanx of the thumb

Question 10

abductor pollicis brevis i

Answer 10

trapezium and scaphoid tubercles and flexor retinaculum, base of proximal phalanx and extensor hood of the thumb

Question 11

extensor pollicis brevis o

Answer 11

posteiro surfaces of radius (distal to abductor pollicis longus) and the adjacent interosseous membrane/ dorsal surface of base of proximal phalanx of thumb

Question 12

extensor pollicis longus o

Answer 12

posterior surfaces of ulna distal to abductor pollicis lungus) and interosseous membrane/ dorsal surface of base of distal phalanx of thumb

Question 13

abductor pollicis longus o

Answer 13

posterior surfaces of ulna and radius and interosseous membrane / lateral side of base of 1st metacarpal

Question 14

supinator o

Answer 14

superficial part- lateral epicondyle of humerus, radial collateral and annular ligaments, deep part, supinator crest of the ulna/ anterior and lateral surface of proximal one-third of radius superior to the anterior oblique line

Question 15

extensor digiti minimi o

Answer 15

lateral epicondyle of humerus and djacent intermuscular septum together with extensor digitorum/ extensor hood of the little finger