2 Written Questions

1. Origin - Middle fifth of humerus. Insertion - Styloid process of radius. Action - Spinator of hand.
2. Origin - Lateral epicondyle of humerus. Insertion - Proximal phalanges of digits 2 to 5. Action - Extends digits 2 to 5.

2 Multiple Choice Questions

1. Origin - Lateral supracondylar ridge. Insertion - Tendons of extensor digitorum communis. Action - Extends digits 2 to 5.
   1. Extensor digitorum lateralis
   2. Extensor carpi radialis brevis
   3. Extensor digitorum communis
   4. Extensor carpi ulnaris
2. Origin - Lateral epicondyle of humerus. Insertion - Base of metacarpal 5. Action - Extends digit 5.
   1. Extensor digitorum communis
   2. Extensor carpi radialis brevis
   3. Extensor carpi ulnaris
   4. Extensor carpi radialis longus

2 True/False Question

1. Extensor carpi radialis brevis → Origin - Lateral supracondylar ridge. Insertion - Base of second metacarpal. Action - Extends hand.
   

   True        False

2. Extensor carpi radialis longus → Origin - Lateral supracondylar ridge. Insertion - Base of second metacarpal. Action - Extends hand.
   

   True        False