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2: Thoracic Wall and Contents, Heart and Lungs
Introduction
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Overview
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Identification
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Summary
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Imaging
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Clinical Case Study
Internal Intercostal Muscles
Muscle fibers originate on the inferior rib and costal cartilage surface along a line running from the sternum to the angle of the rib.
Fibers course obliquely to insert on the superior surface of the rib below.