Anatomy Heart
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Created by:
whitesidzc Plus on February 19, 2012
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35 terms
Terms | Definitions |
|---|---|
 thoracic aorta, thoracic duct, esophagus | The heart lies anterior to |
| thymus | The heart lies posterior to |
| diaphragm | The heart lies superior to |
| aortic arch | The heart lies inferior to |
| epicardium | Outer surface of heart, coronary vessels |
| myocardium | "cardiac muscle", thickness is pressure related, effects autonomic nervous system |
| endocardium | Inner surface of heart, continuous with endothelium, cusps of valves |
| Pericardium | Container for heart |
| great vessels | Superior edge of pericardium |
| diaphragm | inferior edge of pericardium |
| pulmonary trunk, ascending aorta, atrial auricles, ventricles, atrio-ventricular sulcus, anterior inter-ventricular groove | Anterior surface of heart |
| superior vena cava, inferior vena cava, pulmonary veins, left atrium, atrio-ventricular sulcus | Posterior surface of heart |
| ventricles, inferior vena cava | Inferior surface of heart |
| superior vena cava, inferior vena cava, coronary sinus | Sources of blood for right atrium |
| tricuspid valve | Right atrium empties through |
| tricuspid valve | Source of blood for right ventricle |
| pulmonic valve | right ventricle empties into |
| 3 cusps | Pulmonary valve anatomy |
| pulmonary veins | Left atrium source |
| mitral valve | Left atrium empties through |
| 2 cusps | mitral valve anatomy |
| mitral valve | Source of blood for left ventricle |
| aortic valve | Left ventricle ejects into |
| 3 cusps | Aortic valve anatomy |
| pacemaker | cardiac cells with fastest rate of spontaneous activity |
| propagation | cell to cell transmission |
| autonomic nervous input, hormonal input | Cardiac cells are influenced |
| increase rate, increase strength of contraction | Sympathetic nervous system effect on heart |
| wall of right atrium | sino atrial node location |
| sinus | sino atrial node rhythm |
| specialized cardiac muscle cells for transmissions | Purkinje cells |
| slow heart rate | Parasympathetic nervous system effect on heart |
| depolarization of Atriums | P wave |
| depolarization of ventricles | QRS wave |
| polarization of ventricles | T wave |
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