Upper Extremity - Forearm

Question 1

Origin of Anterior Compartment?

Answer 1

Medial epicondyle of humerus, radius and ulna

Question 2

Insertion of Anterior Compartment?

Answer 2

carpals, metacarpals, and phalanges

Question 3

Action and Innervation of Anterior Compartment?

Answer 3

Flexes the wrist and fingers and pronates the forearm

Median or Ulnar nerve

Question 4

Muscles of the Anterior Compartment?

Answer 4

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris
Flexor digitorum superficialis 
Flexor digitorum profundus 
Flexor pollicis longus
Pronator quadratus

Question 5

Origin of Posterior Compartment?

Answer 5

lateral epicondyle of humerus, radius and ulna

Question 6

Insertion of Posterior Compartment?

Answer 6

Carpals, metacarpals and phalanges

Question 7

Action and Innervation of the Posterior Compartment?

Answer 7

Extends wrist and fingers, supinates forearm

Radial nerve

Question 8

Muscles of the Posterior Compartment?

Answer 8

Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor digitorum 
Extensor digiti minimi
Extensor carpi ulnaris 
Extensor pollicis longus
Extensor pollicis brevis
Abductor pollicis longus
Extensor indicis

Question 9

Describe the borders of the Anatomical Snuffbox

Answer 9

Lateral - abductor pollicis longus and extensor pollicis brevis
Medial - extensor pollicis longus
Floor - scaphoid and trapezium