Free Anatomy Quiz: Circulatory System

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How many chambers does the human heart have?

4

What is a thrombosis

A blood clot

What is a network of capillaries called

A capillary bed

What is the result of improper blood flow in a coronary artery

A heart attack

Which blood vessel provides oxygenated blood

Aorta

Which type of vessel needs to withstand high blood pressure

Artery

What is it called when plaque builds up in the arteries

Atherosclerosis

What shape are red blood cells

Biconcave discs

Which is not transported in plasma

Bile

What kind of signal does a cardiac pacemaker use

Electric

How thick is the wall of the capillary

One cell

What does the pulmonary vein supply the heart with

Oxygenated blood from the lungs

What is the function of white blood cells

Part of the immune system

Which component of blood is crucial to clotting

Platelets

Which type of cell carries oxygen around the body

Red blood cell

A blood clot in the brain can cause which event

Stroke

Which vessels supply the heart with blood

The coronary arteries

Which of these is not a function of blood

The digestion of nutrients

What does the pulse represent

The heartbeat

What is plasma

The liquid component in blood

Where does the right ventricle pump blood to

The lungs

Which of these vessels carries deoxygenated blood from the heart

The pulmonary artery

What heart chamber does the vena cava empty into

The right atrium

What is the function of a valve in a brain

To prevent reverse blood flow

What is the function of the blood-brain barrier

To protect the brain from toxins

Why is blood clotting essential

To reduce blood loss

Why do arteries have thick walls of smooth muscle

To withstand high pressure

Which type of vessel contains valves

Veins

Systolic blood pressure is measured once...

Ventricles contract

In what units is blood pressure measured

mm Hg


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