What Is a Cardiac Cycle

question 25

Multiple Choice

What is a cardiac cycle?

• A) Contraction of the atria
• B) One complete heartbeat
• C) Relaxation of the entire heart
• D) Contraction of the ventricles

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Definitions:

Antibody

A protein produced by the immune system that recognizes and binds to specific foreign substances (antigens) to help fight off infections.

Antigens

Substances that induce an immune response in the body, especially the production of antibodies.

Radioimmunoassay

A sensitive technique used in biochemistry to measure concentrations of antigens by the use of antibodies.

False Positive

A test result which wrongly indicates the presence of a condition or characteristic.