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Muscles of the Arm. Jordan and Morgan Bock 1 December 1, 2008. Bicep Brachii. Origin: Coracoid process and tubercle above glenoid cavity of scapula Insertion: Radial tuberocity. Long Head Short Head. Motion: Flexes forearm at elbow and rotates hand laterally
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Muscles of the Arm Jordan and Morgan Bock 1 December 1, 2008
Bicep Brachii • Origin: Coracoid process and tubercle above glenoid cavity of scapula • Insertion: Radial tuberocity • Long Head • Short Head
Motion: Flexes forearm at elbow and rotates hand laterally • Uses: Picking up a shopping bag or doing curls while weight lifting
TricepBrachii • Origin: Tubercle below glenoid cavity and the lateral and medial surfaces of the Humerus • Insertion: Olecrenon process of the Ulna 1. Long head 2. Lateral head 3. Medial head
Motion: Extends forearm elbow • Uses: Pushing a door closed or extending your arms while bench pressing
Brachioradialis • Origin: Distal and lateral ends of the Humerus • Insertion: Lateral surface of Radius above Styloid process
Motion: Flexes forearm at elbow • Uses: Turning a door knob or reverse curls
Bibliography http://www.exrx.net/Lists/Directory.html http://www.sportsinjuryclinic.net/cybertherapist/muscles/