Outline the flow of the electrical impulse through the conduction system of the heart by choosing the correct sequence from the drop-down menusFill the slots with the terms provided (A) leads to (B) leads to (C) leads to (D) leads to (E) Terms to use: Purkinje fibers SA node AV node and atrial contractile cells Ventricular and contractile cells right and left bundle branches

Outline the flow of the electrical impulse through the conduction system of the heart by choosing the correct sequence from the drop-down menusFill the slots with the terms provided (A) leads to (B) leads to (C) leads to (D) leads to (E) Terms to use: Purkinje fibers SA node AV node and atrial contractile cells Ventricular and contractile cells right and left bundle branches

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section: Chapter Questions

Problem 12RE

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Rank the movements of blood through the heart described below at left according to the magnitude (or, intensity) of myocardial electrical activity needed to drive it, from least greatest ( by selecting a number for each from the drop-down menus at right (numbers will be used only once). to systolic ventricular filling [Choose ] ejection of blood into the pulmonary trunk [ Choose ) diastolic ventricular filling [ Choose ) ejection of blood into the ascending aorta [Choose )
The standard EKG consists of 10 sensors that record 12 leads of the heart’s electrical activity from different angles, allowing for a thorough three-dimensional interpretation of its activity. This is transmitted by the electrodes to the equipment to be interpreted and is used to diagnose cardiac medical conditions. In case of an abnormal EKG, the second step would be to use a Holter monitor. How would you explain to your classmates how to perform an EKG (steps)? Where will you place the electrodes when performing and EKG? Why? What are the different lead types, connections, and placements? When you conclude an EKG, what are the different components that you need to observe and confirm before you disconnect the patient? Can you explain the difference between normal, abnormal, and artifacts? What is a Holter monitor? Under what circumstances would one be ordered for a patient? How do you use a Holter monitor? Educate a patient: What you will do before, during, and after an…
The standard EKG consists of 10 sensors that record 12 leads of the heart’s electrical activity from different angles, allowing for a thorough three-dimensional interpretation of its activity. This is transmitted by the electrodes to the equipment to be interpreted and is used to diagnose cardiac medical conditions. In case of an abnormal EKG, the second step would be to use a Holter monitor. How would you explain how to perform an EKG (steps)? Where will you place the electrodes when performing and EKG? Why? What are the different lead types, connections, and placements? When you conclude an EKG, what are the different components that you need to observe and confirm before you disconnect the patient? Can you explain the difference between normal, abnormal, and artifacts? What is a Holter monitor? Under what circumstances would one be ordered for a patient? How do you use a Holter monitor? Educate a patient: What you will do before, during, and after an electrocardiogram or…
In the given table, three of the anatomical and physiological terms are similar or related; one does not belong with the other three. Choose the term that does NOT belong in each of the following groups. A B C D 1 Pulmonary Trunk Vena Cava Right Side of the Heart Left Side of the Heart 2 QRS Wave T Wave P Wave Electrical Activity of the Ventricles 3 AV Valves Closed AV Valves Opened Ventricular Systole Semilunar Valves Open 4 Tricuspid Valve Mitral Valve Bicuspid Valve Left AV Valve 5 Pulmonary Valve Umbilical Artery Pulmonary Vein Superior Vena Cava
Describe the electrical event in the heart that occurs during each of the following: (a) the QRS wave of the ECG; (b) the T wave of the ECG; (c) the P-R interval of the ECG.
Select the best answer or answers from the choices given: In the heart, which of the following apply? (1) Action potentials are conducted from cell to cell across the myocardium via gap junctions, (2) the SA node sets the pace for the heart as a whole, (3) spontaneous depolarization of cardiac cells can occur in the absence of nerve stimulation, (4) cardiac muscle can continue tocontract for long periods in the absence of oxygen. (a) all of the above, (b) 1, 3, 4, (c) 1, 2, 3, (d) 2, 3.
We analyzed the difference between the action potential of a cardiac contractile cell and an action potential in a neuron. Describe the physiological mechanisms behind the primary difference in the shape of these two action potentials. Why is this feature important to the normal workings of the heart?
An elephant has an aorta that is approximately 8 cm in diameter and a restingheart beat of 35 beats/min. Over the cardiac cycle, do you think that velocityprofiles in the aorta will be: fairly flat, oscillating back and forth, or more parabolic, oscillating back and forth?Make and state necessary assumptions.
Put the progression of the electrical excitation of the heart muscle in the right order Atrial walls Sa nodes AV bundle AV node Purkinje fibers
40- In the brain the frontal lobe has Oa. Voluntary motor activity Ob. Speaking Oc. Reasoning Od. Problem solving Oe. All of the above
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High pressure in the systemic and pulmonary circuit often results in ventricular hypertrophy in which the ventricle enlarges to pump against the greater force. Which side(s) of the heart would affected by high pressure in the pulmonary circuit? Which side(s) of the heart would be affected by high pressure in the systemic circuit? Could you explain this answer? Thank you