Cardiac Output

Front

What is cardiac output?

Back

Cardiac output is the amount of blood pumped by the heart each minute, calculated as the product of heart rate and stroke volume.

Front

What factors influence cardiac output?

Back

Cardiac output is influenced by heart rate, stroke volume, body size, and aerobic fitness.

Front

Define stroke volume.

Back

Stroke volume is the amount of blood pumped by the heart with each beat.

Front

How does exercise affect stroke volume in athletes?

Back

Exercise increases stroke volume in athletes, leading to a higher cardiac output.

Front

What is the formula for calculating cardiac output?

Back

Cardiac Output (CO) = Heart Rate (HR) x Stroke Volume (SV).

Front

What happens to heart rate during stress?

Back

Heart rate increases during stress due to the release of adrenaline.

Front

What is the normal range for blood pressure in adults?

Back

The normal blood pressure range is typically around 120/80 mmHg.

Front

What is the effect of dehydration on heart rate?

Back

Dehydration can lead to an increased heart rate as the body tries to maintain blood pressure.

Front

True or False: Low cardiac output is healthy.

Back

False. Low cardiac output can indicate poor heart function and is not considered healthy.

Front

Which of the following does NOT describe cardiac output?

Back

It is the amount of blood pumped out of the heart each beat.