Key skeletal muscle origins, insertions, and actions for physical therapy students.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What is the origin of the short head of the biceps brachii?
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Coracoid process of the scapula- Where does the biceps brachii insert?
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Radial tuberosity- What movement does the biceps brachii cause that the brachialis does not?
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Supination of the forearm- What is the origin of the long head of the triceps brachii?
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Infraglenoid tubercle of the scapula- Where does the triceps brachii insert?
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Olecranon process of the ulna- What action does the triceps brachii perform at the elbow?
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Elbow extension- What are the origin points of the deltoid muscle?
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Clavicle, acromion, and scapular spine- Where does the deltoid insert?
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Deltoid tuberosity of the humerus- What is the main action of the middle fibers of the deltoid?
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Abducts the shoulder- What are the origin points of the pectoralis major?
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Clavicle, sternum, and costal cartilages- Where does the pectoralis major insert?
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Lateral lip of the intertubercular (bicipital) groove of the humerus- What shoulder action does the pectoralis major produce?
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Adducts the shoulder- Where does the latissimus dorsi originate?
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Spinous processes of the lower thoracic and lumbar vertebrae via the thoracolumbar fascia- Where does the latissimus dorsi insert?
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Intertubercular groove of the humerus- What shoulder action does the latissimus dorsi produce?
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Extends the shoulder
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