Forearm 1

Question 1

Brachioradialis origin and insertion

Answer 1

Proximal 2/3 lateral supracondylar ridge to lateral distal radius (stylish process)

Question 2

Brachioradialis action

Answer 2

Flex forearm, maintain midline by pronating and suppinating back to “ski pole form”

Question 3

Brachioradialis nerve

Answer 3

Radial

Question 4

Brachioradialis blood supply

Answer 4

Radial recurrent

Question 5

Extensor Carpi Radialis Longus origin and insertion

Answer 5

Distal 3rd of lateral supracondylar ridge to

base of 2nd metacarpal

Question 6

Extensor Carpi Radialis Longus action

Answer 6

Extend hand
Radially deviate hand
Flex forearm (weak)

Question 7

Extensor Carpi Radialis Longus nerve

Answer 7

Radial

Question 8

Extensor Carpi Radialis Longus blood supply

Answer 8

Radial A

Radial Recurrent A

Question 9

Extensor Carpi Radialis Brevis origin and insertion

Answer 9

Lateral epicondyle (common extensor tendon) to 
base of 3rd metacarpal

Question 10

Extensor Carpi Radialis Brevis action

Answer 10

Extend hand

Radially deviate hand

Question 11

Extensor Carpi Radialis Brevis nerve

Answer 11

Radial N

Question 12

Extensor Carpi Radialis Brevis blood supply

Answer 12

Radial A

Radial Recurrent A

Question 13

Extensor digitorum origin and insertion

Answer 13

Lateral epicondyle (common extensor tendon) to 
middle and distal phalanges AND extensor expansion (hood) of 2-5

Question 14

Extensor digitorum action

Answer 14

Extend all joints of digits 2-5

Extend hand

Question 15

Extensor digitorum nerve

Answer 15

Deep branch of Radial N.

Question 16

Extensor digitorum blood supply

Answer 16

Posterior Interosseous A

Question 17

Extensor Carpi Ulnaris origin and insertion

Answer 17

Lateral epicondyle(common extensor tendon) posterior proximal ulna to
Base of 5th metacarpal

Question 18

Extensor Carpi Ulnaris action

Answer 18

Extend hand
Ulnarly deviate hand
Extend forearm

Question 19

Extensor Carpi Ulnaris nerve

Answer 19

Deep branch of Radial N.

Question 20

Extensor Carpi Ulnaris blood supply

Answer 20

Posterior Interosseous A

Question 21

Extensor digiti minimi origin and insertion

Answer 21

Lateral epicondyle (common extensor tendon) to 
Extensor expansion(hood) of 5th digit

Question 22

Extensor digiti minimi action

Answer 22

Extend 5th digit
ulnar deviation (assist)
extension (assist)

Question 23

Extensor digiti minimi nerve

Answer 23

Deep branch of Radial N.

Question 24

Extensor digiti minimi blood supply

Answer 24

Posterior Interosseous A.