Upper Appendage Muscles

Question 1

Deltoid

Answer 1

Origin - Clavicle (Anterior), Acromion Process (Lateral), Scapular Spine (Posterior)

Insertion - Deltoid Tuberosity

Action - Circumduction

Question 2

Triceps Brachii

Answer 2

Origin - Long head: Infraglenoid tubercle Medial Head: Posterior Surface of Humerus Lateral Head: Lateral Posterior surface of humerus

Insertion - Olecranon Process

Action - Extension of elbow

Question 3

Biceps Brachii

Answer 3

Origin - Long Head: Supraglenoid Tubercle Short Head: Coracoid Process

Insertion - Radial Tuberosity

Action - Flexion of the foremarm

Question 4

Brachialis

Answer 4

Origin - Anterior Surface of the Humerus

Insertion - Ulnar Tuberosity, Coranoid Process

Action - Flexion of the foremarm

Question 5

Brachioradialis

Answer 5

Origin - Supracondylar ridge of the humerus

Insertion - Radial Styloid Process

Action - Flexion of the foremarm