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WHAT IF? If your doctor gave you a copy of your ECG recording, how could you determine what your heart
rate had been during the test?
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- DATA ANALYSIS 1. What electrical and mechanical events correlate to the P wave? The QRS complex? The T wave? 2. During which ECG interval does filling of the ventricles occur? During which ECG interval does ejection occur? What is systole and diastole? 3. Describe the path an action potential travels during one cardiac cycle. 4. Describe the flow of blood through the heart and the subsequent flow through the body. 5. What changes occurred in heart rate as position changes from lying down to sitting up? Describe the physiological mechanisms causing these changes. 6. What percentage of the resting cardiac cycle is systole and what percentage is diastole? How did this percentage change with exercise? Explain.3. BI Heart muscle cell 00000000 silence! GOOGGOL 00000000 current high (everyone is quiet) current 00000 fibriliation కొ ం defibrillation 10r (1) In your own words, what is the main function of a defibrillator? (2) What scenario or situation was the defibrillator compared to? Give evidence. (3) What do we need if we want our defibrillator to work effectively?Sequence of Events Blood Flow Through the Heart Test your knowledge of the flow of blood through the heart by placing the following cardiac events in the proper order. The first step has been provided to get you started. Arrange the subsequent events by inserting the numbers 2 through 18 in the spaces provided. 1. Deoxygenated blood flows through the superior and inferior vena cava and into the right atrium. A. Blood fills the left atrium. B. The right atrium contracts. - C. The pulmonary valve closes. D. Blood leaves the lungs via the pulmonary veins. E. The left atrium contracts. F. The pulmonary valve opens. G. Blood flows into the aorta for distribution throughout the body. H. The mitral valve closes. 1. The left ventricle contracts. J. The aortic valve opens. K. The right ventricle contracts. L. The tricuspid valve opens. M. Blood is pumped into the right and left pulmonary arteries and into the lungs. N. Blood fills the left ventricle. O. The mitral valve opens. P. Blood flows…
- please answer in your own words and not outside sources please thank you! 1. How many waves does an ECG have? and What is happening during each wave and segment in an ECG?lo lo Drawing Conclusions Heart Structures Color the heart structures in the following figure; use the colors suggested or choose your own. Then identify each of the heart's four valves (noted by the letters A through D in the figure) and describe the function of each; use the spaces provided. • Right atrium: Dark blue • Right ventricle: Light blue • Left atrium: Light red • Left ventricle: Dark red • Interatrial septum: Orange • Interventricular septum: Yellow • Tendinous cords (chordae tendineae): Black • Papillary muscle: Brown Heart valves and functions: A. В. C. D. Chapter 15 Heart 187v. Test your knowledge of the flow of blood through the heart by placing the following cardiac events in the proper order. The first step has been provided to get you started. Arrange the subsequent events by inserting the numbers 2 through 18 in the spaces provided. 1. Deoxygenated blood flows through the superior and inferior vena cava and into the right atrium. A. Blood fills the left atrium. _B. The right atrium contracts. _C. The pulmonary valve closes. D. Blood leaves the lungs via the pulmonary veins. E. The left atrium contracts. _F. The pulmonary valve opens. G. Blood flows into the aorta for distribution throughout the body. _H. The mitral valve closes. _I. The left ventricle contracts. J. The aortic valve opens. _K. The right ventricle contracts. L. The tricuspid valve opens. M. Blood is pumped into the right and left pulmonary arteries and into the lungs. N. Blood fills the left ventricle. O. The mitral valve opens. P. Blood flows into the right ventricle. Q. The tricuspid…
- please answer multiple choiceses Consider venous return. Which ONE of the following could increase venous return? A decrease in sympathetic nervous system activity to the veins. Exhaling (moving) air out of the lungs An increase in skeletal muscle contractions 2. Why does the plateau phase of the cardiac action potential allow for the completion of contraction and relaxation of cardiac muscle? Because the plateau phase is absolute refractory to another stimulus Its summation of action potentials allows for smooth contraction of cardiac muscle It allows for the faster opening of K+ channels 3.Consider two ECG waveforms occurring one after another. If the R-R interval decreases, then what is happening? The QRS complexes become wider and slower -The rate of ventricular DEpolarization increases - There is an increase in heart rate 4.Given systolic pressure= 130 mmHg. Diastolic pressure=95 mmHg. Mean arterial pressure falls in which of the following ranges? -100-110mmHG…4.4. On the circulatory system, what are the correct statements? PHYSIOLOGY_advanced (OJO) Pacemaker cells of the heart are neurons with a stable resting membrane potential. Pacemaker cells of the sinus node, located at the left atrium, determine the heart beat frequency. Cardiac output is a function of the heart beat frequency and the stroke volume. The Frank-Starling mechanism allows coupling of the venous return with the stroke volume. Within each capillary bed there is a net loss of liquid to the extracellular space; this imbalance depends on the hydrostatic pressure and the colloid osmotic pressure gradients.In your point of view as a senior high school stem student, How will you raise an awareness on the seriousness of this disease called hypertension?
- Please do your own solution and dont copy paste from other posters answers. Draw a basic block diagram of oscillometric blood Pressure measurement setup and explain each block in the diagram in details.65. The ECG records the electrical stimulation of cardiac muscle by the conduction system and not the contraction of the muscle itself.! True or FalseASAP! Conduction of a neural signal through the walls of the ventricles of the heart is accomplished along: A. Interatrial Fibers B. The sinoatrial node C. The AV bundle D. The purkinje fibers
