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Cards In This Set
| Front | Back |
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Location of the heart
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Midiastinum between the second and fifth intercostal space
Superior surface of daiphragm Two thirds to the left of the midsternal line Anterior ro the vertebral column, posterior to sternum |
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Where is heart enclosed
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Pericardium, doubble walled sac
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Location of heart (picture)
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Superior vena cava
Pulmonary trunk Diaphragm Aorta Parietal pleural Left lung Pericardium(cut) Apex of heart |
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What does the superficial fibrous pericardium do?
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Protects, anchors, and prevents overfilling
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What are the two layers of the deep two layered serous pericardium?
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Parietal
Visceral |
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Parietal layer of pericardium
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Lines the internal surface of fibrous pericardium (belonging to walls)
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Visceral layer of pericardium
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External surface of organ (belonging to organ)
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Pericarditis
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Inflammation of the pericardium - roughens serous membrane surface. Patients complain of pain deep in the sternum.
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Cardia tamponade
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When the peicardial cavity is overfilled
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Epicardium
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Visceral layer of the serous pericardium
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Myocardium
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Spiral bundles of cardiac muscle cells
Fibrous skeleton of the heart: crisscrossing, interlacing layer of connective tissue |
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Myocardium function
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Anchors cardiac muscle fibers,
Supports great vessels and valves, Limits spread of action potentials to specific paths |
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Endocardium
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Continous with endothelial lining of blood vessels
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The cardiac muscle bundles prevent what?
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Stretching of the valves and vessels
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