Homework Answers
During isovolumetric contraction, the contraction of ventricles occur with the constant volume which lead to increase in intraventricular pressure. During this time pulmonary, aortic and atrioventricular valves remain closed.
During isovolumetric relaxation, intraventricular pressure falls with very minute increase in volume of the ventricle. During this time aortic valve remain close but mitral valve is opened.
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D. Explain both isovolumetric contraction and isovolumetric relaxation-how is pressure changing but the volume in the...
QUESTION 16 During the Isovolumetric Relaxation Phase, the Ventricular volume 200 400 600 800 ms QRS...
QUESTION 16 During the Isovolumetric Relaxation Phase, the Ventricular volume 200 400 600 800 ms QRS complex ECG 120 Pressure 60 (mm Hg) Heart sounds 135 Left ventricular volume (ml) 65 Atrial systole Ventricular systole Ventricular diastole Atrial systole Increases Stays the same O Decreases During the Isovolumetric Relaxation Phase, the Ventricular pressure 200 400 600 800 ms QRS complex ECG 120 Pressure 60 (mm Hg) Heart sounds 135 Left ventricular volume (mL) 65 Atrial systole Ventricular systole Ventricular diastole...
1. Describe the 3 layers of pericardium. 2. Trace a drop of blood thru the heart....
1. Describe the 3 layers of pericardium. 2. Trace a drop of blood thru the heart. 3. Explain how pressure changes influence valve positions for both AV valves and SL valves. 4. Define a pacemaker potential. How does it relate to an action potential for the intrinsic conduction system? 5. Follow the intrinsic conduction pathway and describe how the remaining 99% of the cardiac cells are stimulated. How is the action potential in the intrinsic cells different from the action...
1 Explain the events of inspiration and expiration in terms of muscle contraction, change in volume...
1 Explain the events of inspiration and expiration in terms of muscle contraction, change in volume (space), change in pressure and flow of air. 2 What factors stimulate breathing? Between O2 and CO2, which is more important in terms of stimulation of breathing? Why? 3 What does GFR stand for? What happens in nephrons if GFR is too high? Too low? 4 Describe the positive feedback mechanism used by the nephron loop to make the medulla salty. What is the...
How would the volume be changing if the pressure were decreasing? Does this demonstrate a direct...
How would the volume be changing if the pressure were decreasing? Does this demonstrate a direct or inverse proportion? What liquid is used to measure the pressure changes in this experiment and how is it used? how will it change with increasing pressure (demonstration of Boyle's law)
1. Describe the relationship between pressure, volume, resistance and flow. How is this similar to blood...
1. Describe the relationship between pressure, volume, resistance and flow. How is this similar to blood flow through the heart and vessels? 2. What is intrapulmonary pressure? If it is higher than atmospheric pressure, what happens? What happens if it is lower than atmospheric pressure? Which gas law would you apply to explain this? State the law. 3. What is intrapleural pressure? Why is it important? 4. What would happen if intrapleural pressure became higher than intrapulmonary pressure? What might...
7. Correlate heart sounds with heart action The first heart sound results from the closing of...
7. Correlate heart sounds with heart action The first heart sound results from the closing of which valves? The second heart sound results for the closing of which valves? 8. Describe the basic contraction characteristics of the heart. Contraction of the heart muscle is referred to as Relaxation of the heart muscle is referred to as Remember the ventricles contract 'upward from the apex to the base-forcing blood out of the heart, and that the atria contract downward' from the...
Explain how normal breathing occurs and how it is related to pressure and volume in the...
Explain how normal breathing occurs and how it is related to pressure and volume in the chest cavity ?
Explain how Boyle's law(pressure and volume) is related to respiration.
Explain how Boyle's law(pressure and volume) is related to respiration.
105Pa, initial temperature T-300K, and an initial 1. An ideal gas with initial pressure 2 volume V - 1m3 expands isothermally to a final volume of 2m3. Then, the gas returns to its initial state, fir...
105Pa, initial temperature T-300K, and an initial 1. An ideal gas with initial pressure 2 volume V - 1m3 expands isothermally to a final volume of 2m3. Then, the gas returns to its initial state, first by constant pressure (isobaric) contraction, and then by a change at constant volume (isochoric) a) Draw a PV diagram of this process. What's the total change in thermal energy of the entire process? b) What's the work done by the environment on the gas?...
1. In an isothermal process a. No heat exchange occurs b. Volume remains constant c. Pressure...
1. In an isothermal process a. No heat exchange occurs b. Volume remains constant c. Pressure remains constant d. Temperature remains constant 2. In an adiabatic process a. No heat exchange occurs b. Volume remains constant c. Pressure remains constant d. Temperature remains constant 3. If you try to cool your kitchen on a hot day by opening your refrigerator door, the temperature in your kitchen will a. Decrease b. Increase c. Remain unchanged 4. Entropy can be a. Both...
QUESTION 16 During the Isovolumetric Relaxation Phase, the Ventricular volume 200 400 600 800 ms QRS complex ECG 120 Pressure 60 (mm Hg) Heart sounds 135 Left ventricular volume (ml) 65 Atrial systole Ventricular systole Ventricular diastole Atrial systole Increases Stays the same O Decreases During the Isovolumetric Relaxation Phase, the Ventricular pressure 200 400 600 800 ms QRS complex ECG 120 Pressure 60 (mm Hg) Heart sounds 135 Left ventricular volume (mL) 65 Atrial systole Ventricular systole Ventricular diastole...
How would the volume be changing if the pressure were decreasing? Does this demonstrate a direct or inverse proportion? What liquid is used to measure the pressure changes in this experiment and how is it used? how will it change with increasing pressure (demonstration of Boyle's law)
1. Describe the relationship between pressure, volume, resistance and flow. How is this similar to blood flow through the heart and vessels? 2. What is intrapulmonary pressure? If it is higher than atmospheric pressure, what happens? What happens if it is lower than atmospheric pressure? Which gas law would you apply to explain this? State the law. 3. What is intrapleural pressure? Why is it important? 4. What would happen if intrapleural pressure became higher than intrapulmonary pressure? What might...
7. Correlate heart sounds with heart action The first heart sound results from the closing of which valves? The second heart sound results for the closing of which valves? 8. Describe the basic contraction characteristics of the heart. Contraction of the heart muscle is referred to as Relaxation of the heart muscle is referred to as Remember the ventricles contract 'upward from the apex to the base-forcing blood out of the heart, and that the atria contract downward' from the...
105Pa, initial temperature T-300K, and an initial 1. An ideal gas with initial pressure 2 volume V - 1m3 expands isothermally to a final volume of 2m3. Then, the gas returns to its initial state, first by constant pressure (isobaric) contraction, and then by a change at constant volume (isochoric) a) Draw a PV diagram of this process. What's the total change in thermal energy of the entire process? b) What's the work done by the environment on the gas?...
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