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- Biophysics Which of the following characteristics of ventricles does NOT contribute in the exertion of large pressures?a.) thicker musclesb.) rounded shapec.) stronger contractiond.) none of the aboveBiophysics The heart has parts that are maximum-minimum pressure pairs. Which of these parts pairs have max-min pressures?a.) aorta - right atriumb.) right ventricle - left atriumc.) both a and bd.) neither of these are max/min pairsAlgorithm Management of Left Ventricular Hypertrophy
- Calculate heart rate (BPM) with dimensional analysis. Heart is beating ever 1.13 seconds what would be the calculated heart rate per minute?Why do the cardiac muscles cells demonstrateautorhythmicity?Investigating the Refractory Period of Cardiac Muscle 1. Explain why the larger waves seen on the oscilloscope represent ventricular contraction. ACTIVITY 1 2. Explain why the amplitude of the wave did not change when you increased the frequency of the stimulation. (Hint: Relate your response to the refractory period of the cardiac action potential.) How well did the results compare with your prediction? 3. Why is it only possible to induce an extrasystole during relaxation? 4. Explain why wave summation and tetanus are not possible in cardiac muscle tissue. How well did the results compare with your prediction?
- Anatomy, Physiology, and Electrical Activity of the Heart Instructions A particularly exciting topic to leam in anatomy and physiology is the circulatory system. Our heart is a muscular organ that works as the body's circulatory pump. It takes in deoxygenated blood through the veins and delivers it to the lungs for oxygenation before pumping it into the various arteries, which provide oxygen and nutrients to body tissues by transporting the blood throughout the body. All this would not be possible without the electrical activity that guides this system. 1. Discuss the blood flow through the heart. 2. Explain the electrical conduction system of the heart. 3. Choose which one is more important (blood flow or electrical conduction) and why you chose one versus the other.ERCISE 36 Electrical Activity of the Heart Use this grid to graph the heart rates observed after exercise. Be sure to label your graph completely and accurately. bon Put in Order (rearrange these heart structures in the order through which electrical signals are conducted in a single cardiac cycle) Put in Order 1. atrial myocardium AV bundle branches nim 2. AV bundle AV node subendocardial (Purkinje) fibers SA node 3. 4. 5. ventricular myocardium 6. Fill-in (complete each statement with the correct term) 7. 1. Relaxation of a heart chamber is called _?_. 2. Contraction of a heart chamber is called _?_. 3. The portion of the ECG that represents ventricular repolarization is the _?. 4. Leads I, II, and III together are called the _?_ leads, or appendicular leads. 5. ? is the condition of elevated heart rate. Fill-in 1. 2. 3. 4. 5. a 0010 bu Floouior Inc All rights reserved.The Importance of the Electrocardiogram and Holter Monitor in the Cardiovascular System Instructions 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?…
- The Importance of the Electrocardiogram and Holter Monitor in the Cardiovascular System Instructions 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…Blood velocity is slowest in the capillaries A. Explain the mechanics of why blood slows down in these blood vessels (objective N) B. What would happen if blood velocity was fastest in the capillaries?How a normal stethoscope can be converted into an electronic stethoscope? Mention its advantages and disadvantages.