Heart Structures
Electrical Pathway
Blood Flow
Vocabulary
Mixed
100

This chamber pumps blook to the body.

What is the left ventricle?

100

The heart's natural pacemaker.

What is the SA node?

100

These veins bring blood back to the heart from the body.

What are the vena cava?

100
The term for "lack of blood flow."

what is Ischemia?

100

This side of the heart carries deoxygenated blood.

What is the right side?

200

This wall divides the heart into left and right sides.

What is the septum?

200

This node delays the signal before passing it on.

What is the AV node?

200

This artery carries blood to the lungs.

What is the pulmonary artery?

200

The term for "irregular heartbeat."

What is dysrhythmia?

200

This is the first chamber blood enters when returning from the body.

What is the right atrium?

300

These structures stop blood from flowing backwards.

What are valves?

300

This bundle carries signals from the AV node to the ventricles.

What is the Bundle of His?

300

These veins bring oxygenated blood from the lungs.

What are pulmonary veins?

300

The medical term for heart attack.

What is myocardial infarction (MI)?

300

What happens to blood in the lungs?

What is becomes oxygenated?

400

This chamber receives oxygen-rich blood from the lungs.

What is the left atrium?

400

These fibers cause the ventricles to contract.

What are Purkinje fibers?

400

This artery sends blood to the entire body.

What is the aorta?

400

The condition where the heart cannot pump effectively.

What is heart failure (HF)?

400

Which structure ensures ventricles contract from bottom to top?

What are Purkinje fibers?

500

Name all four chambers of the heart.

What is the right atrium, right ventricle, left atrium, and left ventricle?

500

Put the electrical pathway in correct order.

What is SA node--AV node--Bundle of His--Purkinje fibers?

500

Give the full path of blood through the heart.

What is the vena cava--right atrium--right ventricle--pulmonary artery--lungs--pulmonary veins--left atrium--left ventricle--aorta?

500

A condition where plaque builds up in coronary arteries.

What is coronary artery disease (CAD)?

500

Explain why the left ventricle has thicker walls.

What is because it pumps blood to the entire body at higher pressure?

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