Third Action Flashcards
What are the Third actions of the Deltoid?
- Anterior Fibers: Horizontally adduct the shoulder (G/H joint)
- Posterior Fibers: Horizontally abduct the shoulder (G/H joint)
What are the third actions of the Trapezius?
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Upper Fibers [Unilaterally]: Elevate the scapula (scapulothorasic joint)
- Upwardly Rotate the scapula (S/C joint)
What is the third action of Latissimus Dorsi?
Medially Rotate the shoulder (G/H joint)
What is the third action of Teres Major?
Medially Rotate the shoulder (G/H joint)
What is the third action of the Infraspinatus?
Stabilize the head of humerus in glenoid cavity
What is the third action of Teres Minor?
Stabilize the head of the humerus in glenoid cavity
What is the third action of Rhomboid Major?
Dowardly Rotate the scapula (S/T joint)
What is the third action of Rhomboid Minor?
Dowardly Rotate the scapula (S/T joint)
What are the third actions of the Levator Scapulae?
(Unilaterally) Downardly Rotate the scapula (S/T joint)
(Unilaterally) Elevate the scapula (S/T joint)
What are the third actions of Serratus Anterior?
(With the origin fixed) Hold the medial border of scapua against the rib cage
(With the scapula fixed) May act to elevate the thorax during forced inhalation
What is the third action of Pectoralis Major?
All Fibers: Assist to elevate the thorax during forced inhalation
(with the arm fixed)
What is the third action of Pectoralis Minor?
With scapula fixed: Assist to elevate the thorax during forced inhilation
What is the third action of the Subclavius?
Stabilize the sternoclavicular joint
What is the third action of the Biceps Brachii?
Flex the shoulder (G/H joint)
What is the third action of the Triceps Brachii?
Long head: Adduct the shoulder (G/H joint)
