Wrist & Hand Muscle Attachments

Question 1

Flexor carpii radialis

Answer 1

Origin: Medial epicondyleInsertion: 2nd metacarpal - anteriorly

Question 2

Flexor carpii ulnaris

Answer 2

Origin: Medial epicondyleInsertion: 5th metacarpal - anteriorly

Question 3

Palmaris longus

Answer 3

Origin: Medial epicondyleInsertion: Palmar fascia

Question 4

Flexor digitorum superficialis

Answer 4

Origin: Medial epicondyleInsertion: Middle phalanx of 2-5 fingers

Question 5

Flexor digitorum profundus

Answer 5

Origin: Anterior ulnaInsertion: Distal phalanx of 2-5 fingers

Question 6

Flexor pollicus longus

Answer 6

Origin: Anterior radiusInsertion: Distal phalanx of thumb

Question 7

Extensor carpii radialis longus

Answer 7

Origin: Lateral epicondyleInsertion: 2nd metacarpal - posteriorly

Question 8

Extensor carpii radialis brevis

Answer 8

Origin: Lateral epicondyleInsertion: 3rd metacarpal - posteriorly

Question 9

Extensor carpii ulnaris

Answer 9

Origin: Lateral epicondyleInsertion: 5th metacarpal - posteriorly

Question 10

Extensor digitorum

Answer 10

Origin: Lateral epicondyleInsertion: Distal phalanx of 2-5 fingers (via extensor hood)

Question 11

Outcropper muscles

Answer 11

Origin: Posterior forearmInsertion: To thumb or index finger