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

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

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

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter9: Cardiac Physiology

Section9.3: Mechanical Events Of The Cardiac Cycle

Problem 2CYU

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Similar questions

After oxygen diffuses into lung capillaries, it also diffuses into _______ and binds with _______. a. tissue fluid; red blood cells b. tissue fluid; carbon dioxide c. red blood cells; hemoglobin d. red blood cells; carbon dioxide
Contraction of _______ drives the flow of blood through the aorta and pulmonary arteries. a. atria b. veins c. arterioles d. Ventricles
Which of the following statements best describes the function of the pulmonary arteries or veins? Pulmonary arteries carry deoxygenated blood from the right ventricle of the heart to the lungs. Pulmonary arteries carry deoxygenated blood to the right atrium of the heart from the lungs. Pulmonary veins carry deoxygenated blood from the lungs to the left atrium of the heart. Pulmonary veins carry oxygenated blood from the lungs to the right atrium of the heart.
Pulmonary circulation differs from systemic circulation in that the______. A blood pressure in pulmonary arteries is 1-2mmHg less than that in systemic arteries B right ventricle usually has a smaller stroke volume than the left ventricle C pulmonary arteries are shorter and more distensible than systemic arteries
Which statement comparing the systemic and pulmonary circuits is true?a. The blood flow is greater through the systemic.b. The blood flow is greater through the pulmonary.c. The absolute pressure is higher in the pulmonary.d. The blood flow is the same in both.e. The pressure gradient is the same in both.