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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. Heart rate - Wikipedia

    en.wikipedia.org/wiki/Heart_rate

    The normal range has since been revised in textbooks to 50–90 bpm for a human at total rest. Setting a lower threshold for bradycardia prevents misclassification of fit individuals as having a pathologic heart rate. The normal heart rate number can vary as children and adolescents tend to have faster heart rates than average adults.

  4. Frank–Starling law - Wikipedia

    en.wikipedia.org/wiki/Frank–Starling_law

    There is no bone to fix sarcomere length in the heart (of any animal) so sarcomere length is very variable and depends directly upon blood filling and thereby expanding the heart chambers. In the human heart, maximal force is generated with an initial sarcomere length of 2.2 micrometers, a length which is rarely exceeded in a normal heart.

  5. Heart - Wikipedia

    en.wikipedia.org/wiki/Heart

    The average cardiac output, using an average stroke volume of about 70mL, is 5.25 L/min, with a normal range of 4.0–8.0 L/min. [8] The stroke volume is normally measured using an echocardiogram and can be influenced by the size of the heart, physical and mental condition of the individual, sex, contractility, duration of contraction, preload ...

  6. Not getting enough magnesium could affect cardiovascular risk

    www.aol.com/not-getting-enough-magnesium-could...

    Many studies from 2018 and on have found that magnesium status is inversely correlated with high blood pressure, stroke, coronary and ischemic heart disease, atrial fibrillation, heart failure ...

  7. N.J. Man Accused of Stabbing His Fiancée to Death 1 ... - AOL

    www.aol.com/n-j-man-accused-stabbing-131911300.html

    Jose Melo, 52, is facing a murder charge after Naket Jadix Trinidad Maldonado, 31, was found dead on Monday, Dec. 30, 2024

  8. Cardiac physiology - Wikipedia

    en.wikipedia.org/wiki/Cardiac_physiology

    Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.

  9. Man accused of killing woman in New York subway fire ... - AOL

    www.aol.com/news/man-accused-killing-woman-york...

    NEW YORK (Reuters) -The man accused of killing a woman sleeping on a New York City subway car by setting her on fire after what prosecutors say was a night of heavy drinking pleaded not guilty to ...