Term
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Definition
| The volume of blood pumped through each ventricle per minute |
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Term
| Cardiac output calculation |
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Definition
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Term
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Definition
| volume of blood pumped by the left / right ventricle to the aorta / pulmonary artery |
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Term
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Definition
| contraction and relaxation of cardiac muscle in a heart neat |
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Term
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Definition
| part of the cardiac cycle where heart muscle of the atria contract |
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Term
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Definition
| part of the cardiac cycle where heart muscle of the ventricles contract |
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Term
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Definition
| part of the cardiac cycle where cardiac muscle is relaxed |
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Term
| atrio-ventricular (AV) valve |
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Definition
| heart valve between the atria and ventricles |
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Term
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Definition
| valves leading into the main arteries leaving the heart |
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Term
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Definition
| region of auto-rhythmic cells right atrium; receives impulses from the medulla; also called the pacemaker as it sets the heart rate |
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Term
| atrio-ventricular node (AVN) |
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Definition
| nervous tissue found at the junction between the atria and ventricles |
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Term
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Definition
| record of electrical activity in the heart, used to detect heart abnormalities |
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Term
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Definition
| part of the brain which regulates the SAN (& breathing & peristalsis) |
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Term
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Definition
| branch of the nervous system that contains sympathetic nerves and parasympathetic nerves |
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Term
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Definition
| opposing actions of the sympathetic and parasympathetic nervous systems |
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Term
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Definition
| releases noradrenaline which increases heart rate |
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Term
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Definition
| releases acetylcholine which decreases heart rate |
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Term
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Definition
| instrument used to measure blood pressure |
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Term
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Definition
| typical blood pressure for a young adult |
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Term
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Definition
| abnormally high blood pressure in arteries; major risk factor in coronary heart disease |
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