Primary Actions Flashcards
What is the primary action of the deltoid?
(all fibers) Abduction of the shoulder
What are the primary actions of the Trapezius?
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Upper Fibers [bilaterally]: Extend the head and neck (cervical spine)
- Middle Fibers: Adduct (retract) the scapula (S/T joint)
- Lower Fibers: Depress the scapula (S/T joint)
What is the primary action of the Latissimus Dorsi?
Extend the shoulder (glenohumeral joint)
What is the primary action of Teres Major?
Extend the shoulder (G/H joint)
What is the primary action of the Supraspinatus?
Abduct the shoulder (G/H joint)
What is the primary action of Infraspinatus?
Laterally Rotate the shoulder (G/H joint)
What is the primary action of Teres Minor?
Laterally rotate the shoulder (G/H joint)
What is the primary action of Subscapularis?
Medially Rotate the shoulder (G/H joint)
What is the primary action of Rhomboid Major?
Adduct the scapula (S/T joint)
What is the primary action of Rhomboid Minor?
Adduct (retract) the scapula (S/T joint)
What is the primary action of the Levator Scapulae?
(Unilaterally) Rotate the head and neck to the same side
What is the primary action of the Serratus Anterior?
(With the origin fixed) Abduct (Protract) the scapula (S/T joint)
What are the primary actions of Pectoralis Major?
- Upper fibers:* Flex the shoulder (G/H joint)
- Upper fibers:* Horizontally adduct the shoulder (G/H joint)
What are the primary actions of Pectoralis Minor?
Depress the scapula (S/T joint)
Abduct (protract) the scapula (S/T joint)
What is the primary action of the Subclavius?
Depress the clavicle and draw it anteriory
What is the primary action of the Biceps Brachii?
Flex the elbow (G/H joint)
What is the primary action of the Triceps Brachii?
All heads: Extend the elbow (humeroulnar joint)
What is the primary action of the coracobrachialis?
Flex the shoulder (G/H joint)
