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Download D170 Applied Human Anatomy Winter 2015 Dr
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Muscles Which is superior to the teres major? Origins and Insertions A muscle of the upper limb that crosses a joint on the posterior side will produce… A. Flexion B. Extension Teres major Biceps brachii Understand movements Indicate the location of each muscle in your own shoulder, and match the movement. Understand origins and insertions Based on the action of each muscle, predict the origin and insertion. Muscle Triceps brachii Anconeus Biceps brachii Brachialis Brachioradialis Action Forearm extensor Abducts ulna during forearm pronation Flexes and supinates forearm Flexes forearm Synergist to forearm flexion Which muscles are posterior? Understand origins and insertions Based on the action of each muscle, predict the origin and insertion. Which is the shortest muscle? Muscle Triceps brachii Origin Posterior of scapula (infraglenoid tubercle), posterior shaft of humerus Lateral epicondyle of Anconeus humerus Biceps brachii Anterior of scapula (coracoid process, supraglenoid tubercle), crosses head of humerus Anterior surface of distal Brachialis humerus Brachioradialis Lateral, distal end of humerus Insertion Olecranon of ulna (posterior) Lateral aspect – olecranon of ulna Radial tuberosity of radius Coronoid process of ulna Base of styloid process of radius Predict the action Study these muscles: Anterior Posterior What muscle is this? Choices: Origin: anterior inferior iliac spine and acetabulum Insertion: patella and tibial tuberosity Sartorius Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius Biceps femoris Semitendinous Semimembranosus Popliteus What muscle is this? Choices: Action: Extends leg. Origin: anterior, proximal femur. Obscured by rectus femoris. Sartorius Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius Biceps femoris Semitendinous Semimembranosus Popliteus What muscle is this? Choices: Action: Extends thigh, flexes leg. Most lateral muscle of the hamstrings. Sartorius Rectus femoris Vastus lateralis Vastus medialis Vastus intermedius Biceps femoris Semitendinous Semimembranosus Popliteus Videos on A&P Flix in Mastering A&P Study Area
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