Extensor Carpi Radialis Brevis

Question 1

Extensor Carpi Radialis Brevis (ORIGIN)

Answer 1

Lateral epicondyle of the humerus.

Question 2

Extensor Carpi Radialis Brevis (INSERTION)

Answer 2

Base of the third metacarpal

Question 3

Extensor Carpi Radialis Brevis (INNERVATION)

Answer 3

Radial nerve (posterior interosseous nerve, C7, C8)

Question 4

Extensor Carpi Radialis Brevis (BLOOD SUPPLY)

Answer 4

Radial artery

Question 5

Extensor Carpi Radialis Brevis (ACTION)

Answer 5

Extends and abducts the hand at the wrist