Term
Pectoralis Major
(origin and insertion) |
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Definition
Origin: medial half of clavicle; manubrium and body of sternum; upper six costal cartilages
Insertion: lateral lip of the intertubercular sulcus of the humerus |
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Term
Pectoralis Major
(innervation) |
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Definition
| Lateral and Medial Pectoral nerves |
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Term
Pectoralis Major
(action) |
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Definition
| flexes, adducts, and medially rotates arm |
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Term
Pectoralis Minor
(origin and insertion) |
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Definition
Origin: third, fourth, and fifth ribs
Insertion: coracoid process of the scapula |
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Term
Pectoralis Minor
(innervation) |
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Definition
| medial (and lateral) pectoral nerve(s) |
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Term
Pectoralis Minor
(action) |
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Definition
| depresses scapula; elevates ribs |
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Term
Subclavius Muscle
(origin and insertion) |
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Definition
Origin: junction of first rib and costal cartilage
Insertion: inferior surface of clavicle |
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Term
Subclavius Muscle
(innervation) |
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Definition
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Term
Subclavius Muscle
(action) |
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Definition
| depresses lateral part of the clavicle |
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Term
Serratus Anterior Muscle
(origin and insertion) |
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Definition
Origin: upper eight ribs
Insertion: medial border of the scapula |
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Term
Serratus Anterior Muscle
(Innervation) |
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Definition
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Term
Serratus Anterior Muscle
(action) |
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Definition
| rotates scapula upward; abducts scapula with arm and elevates it above horizontal |
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