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Gross Anatomy
Muscles of the Pectoral region
16
Anatomy
Graduate
11/26/2009

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Cards

Term
Pectoralis Major Origin
Definition
medial 1/2 of clavicle and anterior part and body of sternum
Term
Pectoralis Major Insertion
Definition
Lat. Lip of the intertubercular groove or crest of the greater tubercle of the humerus.
Term
Pectoralis Major Innervation
Definition
Lateral and Medial Pectoral Nerves
Term
Pectoralis Major Action
Definition
Adduction of arm at shoulder joint, medial rotation of arm at shoulder
Term
Subclavius Origin
Definition
Anterior portion of 2nd rib
Term
Subclavius Insertion
Definition
Interior surface of the clavicle
Term
Subclavius Innervation
Definition
Subclavian Nerve
Term
Subclavius Action
Definition
Depression of the clavicle
Term
Pectoralis Minor Origin
Definition
Ribs 3-5
Term
Pectoralis Minor Insertion
Definition
Coracoid process of the scapula
Term
Pectoralis Minor Innervation
Definition
Medial Pectoral Nerve
Term
Pectoralis Minor Action
Definition
Protraction of the scapula
Term
Serratus Anterior Origin
Definition
External surfaces of ribs 1-8
Term
Serratus Anterior Insertion
Definition
Anterior, medial border of the scapula
Term
Serratus Anterior Innervation
Definition
Long Thoracic Nerve
Term
Serratus Anterior Action
Definition
Pulls the scapula forward; rotation of scapula
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