blood returning to heart. Right and left ventricles 2 inferior chambers pump blood into arteries AV valves Ensure one-way blood flow Atrioventricular (AV) valves tricuspid valve - between right atrium & ventricle mitral or bicuspid valve - between left atrium & ventricle Chordae tendineae (cords) connect AV valves to papillary muscles on the floor of ventricles Semilunar valves pulmonary - at ))))))))) to pulmonary artery aortic - at entrance to aorta HEART IS CONE SHAPED AND
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the tunica adventitia. Veins‚ in contrast‚ are subjected to much lower pressures and have thinner walls overall‚ with the tunica adventitia often outsizing the tunica media. Because thinwalled veins conduct blood back to the heart against gravity‚ valves (not present in arteries) also are present at intervals to
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Feature Structure Function Atria (singular atrium) thin walled no valves rough pectinate muscles sinus node (impulse generating tissue) interatrial septum Right atrium: Receives deoxygenated blood returning to the heart from the vena cava and pumps it to the right ventricle. Left atrium: Receives oxygenated blood returning to the heart from the pulmonary veins and pumps it to the left ventricle. Ventricles thicker walls (than atria)‚ the left is thicker than the right as blood must be pumped all
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volts goes back into the furnace‚ then typically through 1 or 2 safety devices to the gas valve. 3. If the standing pilot is lit. The gas valve opens‚ and the gas to the burners is then ignited by the pilot light. 4. The heat exchanger is heated until a device tells the blower to come on‚ usually a fan and limit control. 5. When the thermostat is satisfied‚ the switch in the thermostat opens‚ the gas valve closes‚ stopping fuel and the fan continues to blow until the fan and limit cools‚ turning
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The trumpet is constructed of brass tubing bent twice into an oblong shape. The trumpet and trombone share a roughly cylindrical bore which results in a bright‚ loud sound. The bore is actually a complex series of tapers‚ smaller at the mouthpiece receiver and larger just before the flare of the bell begins; careful design of these tapers is critical to the intonation of the instrument. By comparison‚ the cornet and flugelhorn have conical bores and produce a more mellow tone. As with all brass
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2204-stroke‚ DTS-i‚ air cooled‚ single cylinder 220 cc 83‚000/ Pulsar 180 4-stroke‚ DTS-i‚ air cooled‚ single cylinder 178.6 cc 66‚800/- Pulsar 150 DTS-i‚ air cooled‚ single cylinder 149.01 cc 63‚ 600/ Pulsar-135 LS 4-stroke‚ DTS-i‚ air cooled. 4-valve single cylinder 134.66 cc Rs. 55‚000/- Bajaj Discover 125 4-stroke‚ DTS-i‚ Natural air cooled 124.6 cc 48‚000/- Bajaj Duke Liquid Cooled Single cylinder‚ 4-stroke Engine 124.7 ccm Bajaj Platina 4stroke‚natural air cooled 99.27 cc 37‚000/- Bajaj Platina
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flow through the heart and the heart valves to open and to close? The blood flowing from areas of higher blood pressure to areas of lower blood pressure 10. As the ventricles contract‚ what prevents the atrioventricular valves from swinging upward into the atria? Pressure of the ventricular blood driving the cusps upward until the valve are closed 11. Why does blood ejected into the pulmonary trunk or aorta normally not flow back through the semilunar valve? Back-flowing blood in the ventricles
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damaged heart valves and
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pulmonary veins. Valves of the Heart Pumps need a set of valves to keep the fluid flowing in one direction and the heart is no exception. The heart has two types of valves that keep the blood flowing in the correct direction. The valves between the atria and ventricles are called atrioventricular valves (also called cuspid valves)‚ while those at the bases of the large vessels leaving the ventricles are called semilunar valves. The right atrioventricular valve is the tricuspid valve. The left atrioventricular
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CHEMICAL LABORATORY EXPERIMENTS FOR (EP 205/EG207) LABORATORY MANUAL Lecturer/Instructor: Name: Student ID: Course: FACULTY OF ENGINEERING‚ ARCHITECTURE & BUILT ENVIRONMENT UCSI UNIVERSITY 2013 TABLE OF CONTENT General Instructions Experiment 1 Experiment 2 Experiment 3 Experiment 4 Experiment 5 Experiment 6 Isentropic Expansion Process Brief Depressurization The Fundamental Pressure-Temperature Relationship of Saturated Steam in Equilibrium Determination of Ratio of Volume Determination
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