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  2. Cardiac output - Wikipedia

    en.wikipedia.org/wiki/Cardiac_output

    Major factors influencing cardiac output – heart rate and stroke volume, both of which are variable. [1]In cardiac physiology, cardiac output (CO), also known as heart output and often denoted by the symbols , ˙, or ˙, [2] is the volumetric flow rate of the heart's pumping output: that is, the volume of blood being pumped by a single ventricle of the heart, per unit time (usually measured ...

  3. Circulatory system - Wikipedia

    en.wikipedia.org/wiki/Circulatory_system

    The systemic circulation is a circuit loop that delivers oxygenated blood from the left heart to the rest of the body through the aorta. Deoxygenated blood is returned in the systemic circulation to the right heart via two large veins, the inferior vena cava and superior vena cava , where it is pumped from the right atrium into the pulmonary ...

  4. Cardiac physiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_physiology

    The heart functions as a pump and acts as a double pump in the cardiovascular system to provide a continuous circulation of blood throughout the body. This circulation includes the systemic circulation and the pulmonary circulation. Both circuits transport blood but they can also be seen in terms of the gases they carry.

  5. Coronary circulation - Wikipedia

    en.wikipedia.org/wiki/Coronary_circulation

    Coronary circulation is the circulation of blood in the arteries and veins that supply the heart muscle (myocardium). Coronary arteries supply oxygenated blood to the heart muscle. Cardiac veins then drain away the blood after it has been deoxygenated.

  6. Hemodynamics - Wikipedia

    en.wikipedia.org/wiki/Hemodynamics

    The heart is the driver of the circulatory system, pumping blood through rhythmic contraction and relaxation. The rate of blood flow out of the heart (often expressed in L/min) is known as the cardiac output (CO). Blood being pumped out of the heart first enters the aorta, the largest artery of the body.

  7. Heart - Wikipedia

    en.wikipedia.org/wiki/Heart

    Blood flow through the valves Blood flow through the heart Video explanation of blood flow through the heart. The heart functions as a pump in the circulatory system to provide a continuous flow of blood throughout the body. This circulation consists of the systemic circulation to and from the body and the pulmonary circulation to and

  8. How did John Ritter die? Wife revisits his misdiagnosed heart ...

    www.aol.com/news/did-john-ritter-die-wife...

    During an aortic dissection, the Cleveland Clinic notes, “blood surges through the tear, causing the inner and middle layers to separate.” As a result, normal blood flow can become slow or ...

  9. Cardiac cycle - Wikipedia

    en.wikipedia.org/wiki/Cardiac_cycle

    Circulation is split into pulmonary circulation—during which the right ventricle pumps oxygen-depleted blood to the lungs through the pulmonary trunk and arteries; or the systemic circulation—in which the left ventricle pumps/ejects newly oxygenated blood throughout the body via the aorta and all other arteries.