Extensor Digitorum

Question 1

Extensor Digitorum (INSERTION)

Answer 1

Extensor expansions of the medial four digits

Question 2

Extensor Digitorum (ORIGIN)

Answer 2

Lateral epicondyle of the humerus

Question 3

Extensor Digitorum (INNERVATION)

Answer 3

Radial nerve (posterior interosseous nerve, C7, C8)

Question 4

Extensor Digitorum (BLOOD SUPPLY)

Answer 4

Posterior interosseous artery

Question 5

Extensor Digitorum (ACTION)

Answer 5

Extends the medial four digits at the metacarpophalangeal joints; assists in extension of the hand at the wrist