- Forearm muscles: 20 muscles in two compartments, anterior (flexor) and posterior (extensor), each with a superficial and a deep group.
Anterior Compartment: Superficial Group
- Five muscles, lateral to medial: pronator teres, flexor carpi radialis, palmaris longus, flexor digitorum superficialis, flexor carpi ulnaris.
- All arise, wholly or partly, from the common flexor origin on the front of the medial epicondyle of the humerus.
superficial muscles of the front of the forearm Superficial muscles of the front of the forearm.