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Structure
Functions
Vessels
Valves
Circulation
100
The 2 superior receiving chambers of the heart are known as the _______and the 2 inferior discharging chambers are called the ________.
What is the atria and the ventricles?
100
A recording of the hearts electrical activity is referred to as a(n)__________.
What is electrocardiogram?
100
Larger blood vessels that carry blood away from the heart are called _______.
What are arteries?
100

The valves located between the atria and the ventricles are know as________ valves.

What is atrioventricular?

100
The average heart beats about _______ times per minute?
What is 80?
200

Which membrane surrounds and protects the heart?

What is the pericardium?

200
Blood leaves the right ventricle through a large artery called the
What is the pulmonary artery?
200
The left atrium receives blood from the lungs via vessels called
What is pulmonary veins?
200

The right AV valve is known as the ___________.

What is the tricuspid valve?

200
The circulation from the heart to the lungs is called ________ circulation.
What is pulmonary?
300

This thick, muscular middle layer of the heart wall is responsible for pumping blood throughout the body.

What is the myocardium?

300
When ventricles ________, the AV valves are closed.
What is contract?
300

These blood vessels bring deoxygenated blood back to the heart.

What are inferior and superior vena cava?

300

This valve prevents blood from flowing back into the left ventricle after it enters the aorta.

What is the aortic valve?

300
The first heart sound "lub" is caused by the closing of the _________ valves.
What is atrioventricular (AV)?
400

The structure that divides the left and right ventricles is called the ____________.

What is the septum?

400

What the primary function of the heart?

What is to pump blood?

400

Brings deoxygenated blood from the heart to the lungs.

Pulmonary arteries

400

When ventricles contract, the bicuspid valve (Left AV valve) prevents blood from flowing from the ____________ to the ____________.

What is the left ventricle to the left atrium?

400

During this phase of the cardiac cycle, the heart muscle relaxes and the chambers fill with blood.

What is diastole?

500

This valve, located between the left atrium and left ventricle, prevents the backflow of oxygenated blood into the atrium when the ventricle contracts.

What is bicuspid valve?

500

During which phase of the EKG is the atria contracting and pushing blood into the ventricles?

What is the P wave?

500

The largest blood vessel in the heart.

What is the aorta?

500

This valve separates the right ventricle from the pulmonary artery and opens during ventricular contraction.

What is the pulmonary (semilunar) valve?

500

This is the correct order of blood flow after blood leaves the left ventricle: *this vessel*, then the body, and back to the right atrium.

What is the aorta?