Shoulder and Arm Review

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Shoulder and Arm Review
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Pectoralis Major

• O Clavicle, sternum, upper ribs
• I Humerus
• A Pulls arm anteriorally (across chest), adducts
  arm

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Teres Major

• O Scapula
• I Humerus
• A Adducts arm, rotates arm medial

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Teres Minor

• O Scapula
• I Humerus
• A Rotates arm laterally, lift arm backwards

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Latissimus Dorsi

• O Sacral, thoracic, Lumbar, ribs, ilium
• I humerus
• A Adduction of the arm, pulls shoulder downward
  and posterior

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Deltoid

• O Scapula, clavicle
• I Humerus
• A Abducts humerus,

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Biceps Brachii

• O Scapula (x2)
• I Radius, Fascia (radioulnar joint)
• A Flexes at elbow, rotates hands lateral

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Brachialis

• O Humerus
• I Ulna
• A Flexes
• forearm
• at elbow

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Brachioradialis

• O Humerus
• A Radius
• I Flexes
• forearm
• at elbow

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Triceps Brachii

• O Humerus, scapula, scapula
• I Ulna
• A Extends forearm at elbow

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Flexors

• Actions
• Flex the wrist

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Extensors

• Action
• Extends Wrist