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Anatomy of the heart
The Heart
| Term | Definition |
|---|---|
| Right ventricle | Chamber where blood goes after right atrium |
| Pulmonary Semilunar Valve | Valve that prevents backflow to the right ventricle |
| Tricuspid valve | Valve that prevents blood backflow to the right atrium |
| Coronary sinus | Drains deoxygenated blood from myocardium |
| Bicuspid valve | Prevents blood backflow to the left atrium |
| Aortic semilunar valve | Prevents blood backflow to the left ventrcle |
| Pulmonary trunk | Vessel that carries deoxygenated blood to the lungs |
| Pericardium | Outermost membrane surrounding the heart |
| Division of serous pericardium | Parietal and Visceral |
| Pericarditis | Swelling of serous layers causing friction and making heart work harder |
| Cardiac Temponade/ Pericardial Effusion | Buildup of fluid in the heart |
| Atria | Chamber where blood enters the heart |
| Ventricles | Chambers where blood exit the heart |
| Interatrial septum | Thin wall of tissue separating the two atria |
| Auricle | The atria's attachment that increases surface area |
| Aorta | Largest artery in the body |
| Pulmonary circulation | Type of circulation that flows from right ventricle to left atrium |
| Systemic circulation | Type of circulation which distributes blood to the entire body |
| Valvular incompetency | When valves are unable to close efficiently |
| Valvular stenosis | When valves are unable to open efficiently |
| Circumflex | Feeds left atrium and left ventricle |
| Left anterior interventricular artery (LAD) | Feeds anterior of left ventricle and right ventricle |
| Intercalated disks | Structures that connect adjacent muscle cells |
| Aortic Arch | Segment of the aorta that help distribute blood to the headand upper extremeties via the brachiocephalic trunk , the left common carotid, and the left subclavian artery. |
| Vena Cava | Largest vein in the body |
| Superior vena cava | Valveless vein that transports deoxygenated blood from the upper half of the body |
| Inferior vena cava | Largest vein that transports deoxygenated blood from the lower half of the body |
| SA node | Primary impulse initiator in the heart |
| AV node | Name of node which is responsible for conducting impulses in the heart after the SA node |
| Purkinje fibers | Name of the fibers that transmit electrical impulses to the ventricles after the bundle branches |
| Bachman's bundle | Name of the bundle which transmits electrical impulses to the left atrium |
Created by:
barrigat
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