Free Anatomy Quiz: Circulatory System
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
