Cardiovascular System Overview

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What is the primary function of the heart in the circulatory system?

To generate pressure to drive blood through the vasculature (correct)

To regulate body temperature

To filter waste from the blood

To oxygenate blood

What type of muscle makes up the heart wall?

Voluntary muscle

Smooth muscle

Skeletal muscle

Cardiac muscle (correct)

What is the main function of arteries in the vasculature?

To filter blood

To deliver blood to tissues (correct)

To exchange oxygen and nutrients with tissues

To return blood to the heart

What type of muscle makes up the blood vessel wall?

Smooth muscle Signup and view all the answers

Where does gas and nutrient exchange occur in the vasculature?

Capillaries Signup and view all the answers

What is the formula to calculate cardiac output?

CO = SV × HR Signup and view all the answers

What factors can affect heart rate?

Physical activity and contractility Signup and view all the answers

Which parameter determines stroke volume?

End-diastolic volume and end-systolic volume Signup and view all the answers

During physical activity, how does cardiac output change compared with resting values?

Increases Signup and view all the answers

How is cardiac output affected by increasing either stroke volume or heart rate?

It increases Signup and view all the answers

Which term represents the number of times the heart beats per minute?

Heart rate Signup and view all the answers

What is the primary difference between invasive and non-invasive methods of measuring cardiac output?

Whether they use direct or indirect measurements Signup and view all the answers

Which of the following factors decreases with age, affecting cardiac output?

The efficiency of the cardiovascular system Signup and view all the answers

What is the term for the amount of blood in the ventricles immediately before systole?

Preload Signup and view all the answers

Why is cardiac output calculation an essential diagnostic tool in cardiovascular medicine?

It evaluates the efficiency of the cardiovascular system and monitors disease progression Signup and view all the answers

What is the term for the systemic resistance the ventricles must overcome to eject blood to the vasculature?

Afterload Signup and view all the answers

What happens to heart rate and cardiac output during physical activity?

They increase Signup and view all the answers

Cardiovascular System Overview

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