Elbow - Forearm Muscular Anatomy

An Awesome Elbow

Elbow - Forearm Muscular Anatomy Introduction Demonstrate the following movements at the wrist & elbow: Extension Suppination Flexion Pronation

Elbow - Forearm Muscular Anatomy Objective Students will be able to: Recognize relevant muscular anatomy and corresponding functions of the Elbow/Forearm.

Elbow - Forearm Muscular Anatomy Terminology Extensors/Suppinators: A group of muscles located on the lateral epicondyle of the humerus that produce the combined motions of wrist extension and wrist supination.

Elbow - Forearm Muscular Anatomy Terminology Flexors/Pronators: A group of muscles located on the medial epicondyle of the humerus that produce the combined motions of wrist flexion and wrist pronation.

Elbow - Forearm Muscular Anatomy Biceps Brachii Origin - Long head: supraglenoid tubercle of scapula Short head: coracoid process Insertion - radial tuberosity Action - elbow flexion

Elbow - Forearm Muscular Anatomy Triceps Brachii Origin - Long head: infraglenoid turbercle of scapula Lateral & Medial head: posterior humerus Insertion - olecranon process Action - elbow extension

Elbow - Forearm Muscular Anatomy Brachioradialis Origin - lateral distal humerus Insertion - lateral distal radius Action - elbow flexion (neutral forearm)

Elbow - Forearm Muscular Anatomy Forearm Extensors Origin - Lateral epicondyle of the humerus Insertion - base of metacarpals (dorsal) Action - wrist extension

Elbow - Forearm Muscular Anatomy Forearm Flexors Origins - medial epicondyle of the humerus Insertion - base of metacarpal (palmar) Action - wrist flexion

Elbow - Forearm Muscular Anatomy Forearm Pronators Origin - Teres: medial epicondyle Quadratus: distal anterior ulna Insertion - Teres: Lateral mid shaft of radius Quadratus: distal anterior radius Action - Pronates forearm

Elbow - Forearm Muscular Anatomy Forearm Supinators Origin - Lateral epicondyle of humerus supinator crest of ulna Insertion - Lateral proximal radial shaft Action - Supinates forearm