Heart Chambers
How many questions are in the human heart?
Four
What is the main function of heart valves?
To prevent back-flow of blood.
Blood flow through the heart follows this direction.
One-way
The heart receives its own blood supply through these vessels.
Coronary Arteries
This type of circulation moves blood between the heart and lungs.
Pulmonary Circulation
These chambers receive blood entering the heart
Atria
Which valve separates the right atrium and right ventricle?
Tricuspid valve
Blood enters the right atrium through these two vessels.
Superior and inferior vena cava
Coronary arteries branch off this major vessel.
Aorta
This type of circulation moves blood between the heart and body.
Systemic Circulation
Which chamber receives deoxygenated blood from the body?
Right Atrium
Which valve is also known as the bicuspid valve?
Mitral valve
After leaving the right ventricle, blood travels to the _____.
Lungs
Why does the heart need its own blood supply?
To receive oxygen and nutrients
Which ventricle begins systemic circulation?
Left Ventricle
Which chamber pumps oxygenated blood to the entire body?
Left Ventricle
These valves are found between the ventricles and arteries.
Semilunar valves
Which vessel carries oxygenated blood from the lungs to the heart?
Pulmonary Veins
A blockage in a coronary artery can cause this condition.
Heart attack
Which ventricle begins pulmonary circulation.
Right Ventricle
Why does the left ventricle have thicker walls than the right ventricle?
It must pump blood to the entire body with greater force.
Which valve prevents blood from flowing back into the left ventricle?
Aortic Valve
Put this sequence in order: left ventricle, lungs, right atrium, body.
Right atrium, lungs, left ventricle, body
False
Why are both pulmonary and systemic circulation necessary?
To oxygenate blood and deliver it to the body.