Biology Transport in Heart + Body 0.0 / 5 ? BiologyExchange and TransportASOCR Created by: Benjamin PalmerCreated on: 29-03-14 12:38 Atrioventricular Node (AVN) Patch of tissue in septum of heart that conducts electrical stimulus from atria to Purkyne fibres 1 of 34 Bohr Shift/Effect Effect of CO2 concentration on the affinity of haemoglobin for oxygen 2 of 34 Carbaminohaemoglobin Molecule resulting from combination of CO2 and haemoglobin 3 of 34 Cardiac Cycle Sequence of events making up one heartbeat 4 of 34 Cardiac Muscle Muscle found in the heart that has its own intrinsic heartbeat 5 of 34 Cartilage Flexible and elastic connective tissue 6 of 34 Cartilage Ring Flexible ring that hold airways open 7 of 34 Chloride Shift Movement of chloride ions into red blood cells to balance loss of hydrogen carbonate ions 8 of 34 Coronary Arteries Arteries that carry blood to the heart muscle 9 of 34 Diaphragm Sheet of muscular and fibrous tissue separating the chest cavity from abdominal cavity 10 of 34 Diastole Period when heart muscle in the ventricles is relaxing and blood pressure is lowest 11 of 34 Dilate To make wider e.g. lumen 12 of 34 Dissociation Breakdown of a molecule into two molecules 13 of 34 Dissociation Curve The curve on a graph showing proportion of haemoglobin that is saturated with oxygen at different oxygen tensions 14 of 34 Elastic Fibres Long fibres of protein elastin that have the ability to stretch and recoil 15 of 34 Electrocardiogram Trace showing electrical activity of the heart muscle during a cycle 16 of 34 Fibrillation State in which the chambers in the heart contract out of rhythm 17 of 34 Haemoglobinic Acid Acid produced when haemoglobin takes up hydrogen ions 18 of 34 Lumen Central cavities in blood vessels 19 of 34 Lymphatic System System of lymph nodes and lacteals with lymph fluid 20 of 34 Myoglobin Respiratory protein with a higher affinity for oxygen than haemoglobin 21 of 34 Myogenic Describes heart muscle that generates its own contractions 22 of 34 Partial Pressure Proportion of total pressure provided by a particular gas as part of mixture of gases 23 of 34 Pulmonary Circulation Circulation of blood through lungs 24 of 34 Pulmonary Vein Vein carrying oxygenated blood from lungs to left atrium of heart 25 of 34 Purkyne Tissue Specialised tissue in septum of the heart that conducts the electrical stimulus from sinonatrial node to ventricles 26 of 34 Semilunar valves Valves between ventricles and main arteries leading out of the heart, preventing back flow of blood 27 of 34 Septum Wall separating ventricles of the heart 28 of 34 Sinoatrial Node (SAN) Patch of tissue that initiates heartbeat by sending waves of excitation over atria 29 of 34 Smooth Muscle Type of involuntary muscle found in certain internal organs 30 of 34 Systemic Circulation Carries blod around the body, excluding circulation to the lungs 31 of 34 Tendinous Cords String-like tendons used to attach the atrioventricular valves of the heart to the sides of the ventricle wall 32 of 34 Vena Cava Two large veins that carry deoxygenated blood from the body back to the heart 33 of 34 Ventilation Movement of diaphragm and rib cage that bring air into and out of the lungs 34 of 34
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