ISSA Nutritionist Practice Exam

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Study for the ISSA Nutritionist Exam with our comprehensive quiz. Featuring multiple choice questions, hints, and detailed explanations, you'll prepare effectively for your certification!

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The amount of blood the heart pumps with each heartbeat is known as?

Heart rate
Cardiac output
Stroke volume
Blood pressure

The correct answer is: Stroke volume

The amount of blood the heart pumps with each heartbeat is referred to as stroke volume. Stroke volume specifically measures the volume of blood ejected from the left ventricle of the heart during each contraction. It is an important indicator of heart function and overall cardiovascular health. To better understand stroke volume's significance, it's essential to consider how it relates to other concepts. While heart rate measures the number of times the heart beats in one minute, it does not indicate the volume of blood being moved with each beat. Cardiac output, on the other hand, is the product of stroke volume and heart rate, representing the total amount of blood pumped by the heart per minute. Blood pressure measures the force exerted by circulating blood on the walls of blood vessels, which influences but is distinct from the amount of blood pumped by the heart in each contraction. In summary, stroke volume specifically captures the volume of blood pumped with each heartbeat, making it the correct answer.