What Is a Positron

question 28

Multiple Choice

What is a positron?

• A)A positively charged proton
• B)A positively charged neutron
• C)A positively charged electron
• D)Another term for a beta particle

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Definitions:

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.

Ventricles

Chambers of the heart that receive blood from the atria and expel it to the lungs or body.

Isovolumetric Contraction

A phase of the cardiac cycle where the ventricles contract with no change in volume, occurring between the closure of the atrioventricular valves and the opening of the semilunar valves.