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| 1. Review the osteology. |
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| 2. Reflect the serratus anterior muscle. |
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| 3. Reflect the skin from the root of the neck upward as shown in Figure 3. |
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| 4. Cut the sternocleidomastoid and detach the strap muscles from the manubrium. |
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| 5. Cut the clavicles and first ribs. |
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| 6. Cut intercostal muscles under rib 1. |
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| 7. Reflect the anterior chest wall as shown in Figures 4 & 5. |
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| 8. Identify and remove the external intercostal muscles from two intercostal spaces and expose internal intercostal muscle. |
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| 9. Explore the pleura and its recesses. |
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| 10. Open the pericardial sac and identify its features. |
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| 11. Examine the great vessels and gross external features of the heart. |
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