he arteries that pass through the heart muscle are necessary for delivering enough oxygenated blood to the eart. When the heart ventricles contract (in systole) the pressure around these vessels increases. The heart nuscle is likely to be relatively deprived of oxygen when the pressure inside the arteries minus the pressure outside the arteries is greater than zero. when the pressure inside the arteries minus the pressure outside the arteries is less than zero. when the pressure inside the arteries minus the pressure outside the arteries is greater than O zero and the stabilizing force of the vessel architecture is overcome

Q: What is the effort of different types/intensity of exerise on heart rate

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Q: Which of the following is TRUE of the cardiac action potential? O The cardiac action potential…

A: The muscle action potential is generated due to the contraction and relaxation of the muscle fiber.…

Q: In the following graph, curve (line) N represents a vascular function curve (venous return curve) in…

A: Introduction :- Venous return is the flow of blood from the periphery back to the right atrium, and…

Q: a patients blood test showed high levels of myocardium-specific troponin, and her ECG showed ST…

A: ST elevation means that ST segment in ECG is abnormally high above the baseline. ST segment…

Q: Which factors reflect the oxygen demands of the myocardium?     heart rate multiplied by…

A: Myocardial oxygen demand can be defined as the amount of oxygen that is required by the heart to…

Q: Which best describes blood flow through the heart? oxygenated blood comes into the heart's left…

A: The heart, the lungs, and the blood vessels function to form the round circulatory system. The 3…

Q: The period during which a heart chamber is contracting is called _______ . The period during which…

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Q: You are studying bulk flow in a tissue. You have measured the following: Blood pressure at the…

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Q: An increase in heart rate leads to a increase in arterial pressure leads to a in end diastolic…

A: The heart is the central organ of the cardiovascular system of the body. It is a myogenic organ that…

Q: The second heart sound is caused by

A: Answer:  The Lub - Dup sound produced by the heart is basically the closing of the heart valves.

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Q: mean arterial pressure is a product of  heart rate and cardiac output none of the abouve cardiac…

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Q: Which of the following is not true about the resting Cardiac membrane potential? OA. The membrane…

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Q: Which of the following statements is correct: A rapid ejection occurs during early- ventricular…

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Q: During the production of the waveform of the EKG indicated by the arrow, blood would pass through…

A: