Gross Anatomy of the Pectoral Region
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| Pec Major Clavicular Head Prox. | Anterior medial clavicle
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| Pec Major Sternocostal Head Prox. | Anterior sternum, superior 6 costal cartilages, and external oblique aponeurosis
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| Pec Major Dist. | Lateral Intertubercular Groove
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| Pec Major Act. | ADducts and Internally Rotates Humerus, Flexes Humerus (Clavicular Head), Extends Humerus (Sternocostal)
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| Pec Major Inn. | Medial and Lateral Pectoral Nerves
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| Pec Minor Prox. | 3-5 Ribs
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| Pec Minor Dist. | Medial Superior Coracoid Process
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| Pec Minor Act. | Stabilizes Scapula (pulls anteriorly and inferiorly)
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| Pec Minor Inn. | Medial Pectoral Nerve
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| Subclavius Prox. | 1st Rib and Costal Cartilage
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| Subclavius Dist. | Inferior medial 1/3 of clavicle
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| Subclavius Act. | Anchor and depress clavicle
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| Subclavius Inn. | Nerve to Subclavius
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| Serratus Anterior Prox. | External surface of ribs 1-8
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| Serratus Anterior Dist. | Anterior medial scapular border
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| Serratus Anterior Act. | Scapular Protraction (primary) and Rotation
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| Serratus Anterior Inn. | Long Thoracic Nerve (SALT)
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| Deltopectoral Triangle Borders | Clavicle, Pec Major Clavicular Head, and Anterior Deltoid
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| Deltopectoral Triangle Contents | Cephalic Vein and Branch of Thoracoacromial Artery
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| 3 Superficial Pectoral Veins | Cephalic, Basilic, and Median Cubital
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| C3 Dermatome Area | Turtle Neck Section of Body
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| C4 Dermatome | Turtle Neck and Cape
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| C5 Dermatome | Lateral Arm to Proximal Forearm
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| C6 Dermatome | Lateral Forearm to Thumb
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| C7 Dermatome | Middle Finger
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| C8 Dermatome | Ulnar Side of Hand (Ring/Pinky Finger)
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| T1 Dermatome | Medial Side of Proximal Forearm and Arm to Axilla
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| Supraclavicular Cutaneous Nerve Inn. | Skin over clavicle and superolateral Pec Major
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| Radial Nerve continues as: | Posterior Brachial Cutaneous and Posterior Antebrachial Cutaneous nerves of arm and forearm
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| Musculocutaneous Nerve Inn. | Skin along Radial (Lateral) forearm to base of Thenar eminence
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| Axillary Cutaneous Nerve Inn. | Skin over Deltoid
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| Medial Brachial Cutaneous Nerve Inn. | Skin over Medial Arm
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| Medial Antebrachial Cutaneous Nerve Inn. | Skin over Medial Forearm
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