Hand Origin/insertions

Question 1

Abductor pollicis Brevis

Answer 1

Scaphoid, trapezium and flexor retinaculum to

Lateral side or proximal phalanx base of thumb

Question 2

Adductor pollicis

Answer 2

Oblique: base of metacarpals 2-3 and capitate. Transverse: anterior shaft of metacarpal 3 to
Medial side of proximal phalanx of thumb

Question 3

Flexor pollicis Brevis

Answer 3

Superficial: trapezium and flexor retinaculum. Deep: trapezoid and capitate to
Lateral side of base of proximal phalanx of thumb

Question 4

Opponens pollicis

Answer 4

Flexor retinaculum and trapezium to

Lateral side of 1st metacarpal

Question 5

Flexor digiti minimi

Answer 5

Flexor retinaculum and hook of hamate to

Medial side of base of proximal 5th phalanx

Question 6

Opponens digiti minimi

Answer 6

Flexor retinaculum and hook of hamate to

Medial border of 5th metacarpal

Question 7

Abductor digiti minimi

Answer 7

Pisiform and flexor Carpi ulnaris tendon to

Medial side of base of 5th phalanx

Question 8

Palmaris Brevis

Answer 8

Flexor retinaculum and palmar aponeurosis to

Skin of hand

Question 9

Lumbricals

Answer 9

Flexor digitorum profundus tendons to

Lateral sides of extensor expansions 2-5

Question 10

Palmar interossei

Answer 10

Palmar surface of 2,4,5 metacarpals to

Osseous attachment 2,4,5 and extension expansion 2,4,5

Question 11

Dorsal interossei

Answer 11

Sides of adjacent metacarpals to

Osseous attachments of 2,3,4 and extensor expansion of 2,3,4