Term
Pectoralis major :: Origin |
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Definition
Clavicle, sternum, rib 1-6, cartilages |
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Term
Pectoralis major :: Insertion |
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Definition
Intertubercular sulcus of humerus |
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Term
Pectoralis major :: Action |
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Definition
Shoulder flexion, adducts and medially rotates arm |
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Term
Serratus anterior :: Origin |
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Definition
Lateral aspect of ribs 1-8 |
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Term
Serratus anterior :: Insertion |
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Definition
Medial border of anterior scapula |
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Term
Serratus anterior :: Action |
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Definition
Protracts and upwardly rotates scapula |
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Term
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Definition
Lateral clavicle, acromion and spine of scapula |
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Term
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Definition
Deltoid tuberosity of humerus |
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Term
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Definition
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Term
Pectoralis minor :: Origin |
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Definition
Anterior surface of ribs 3-5 |
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Term
Pectoralis minor :: Insertion |
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Definition
Coracoid process of scapula |
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Term
Pectoralis minor :: action |
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Definition
Draws scapula forward and inferiorly |
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Term
External intercostals :: Origin |
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Definition
Inferior border of rib above |
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Term
External intercostals :: Insertion |
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Definition
Superior border of rib below |
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Term
External intercostals :: Action |
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Definition
Elevates rib cage during inspiration |
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Term
Internal intercostals :: Origin |
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Definition
Superior border of rib below |
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Term
Internal intercostals :: Insertion |
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Definition
Inferior border of rib above |
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Term
Internal intercostals :: Action |
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Definition
Depresses rib cage during expiration |
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Term
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Definition
Inferior border of rib and sternum, last 6 ribs and lumbar vertebrae |
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Term
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Definition
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Term
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Definition
Flattens to increase thoracic volume for inspiration |
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