Examlex
________was the first to identify a new form of autotrophy in which energy is obtained from oxidizing inorganic compounds called________ .
AV Valves
Atrioventricular valves; heart valves located between the atria and ventricles that prevent backflow of blood.
Isovolumetric Contraction
A phase in the cardiac cycle where the ventricles contract with no change in volume because all heart valves are closed.
Ejection
The act of expelling or discharging, often related to the expulsion of blood from the heart or another substance from the body.
Atrial Systole
Contraction of the atria.
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