Cardiovascular System Facts
This organ pumps blood throughout the body.
What is the heart?
Blood first enters through this chamber when returning from the body.
What is the right atrium?
These separate the heart chambers and prevent backward blood flow.
What are valves?
These vessels are the smallest in the body.
What are capillaries?
This tells how many times your heart beats in one minute.
What is heart rate?
These blood vessels carry blood away from the heart.
What are arteries?
This chamber pumps blood to the lungs.
What is the right ventricle?
This valve is located between the left atrium and left ventricle.
What is the mitral (bicuspid) valve?
These vessels have thick, strong walls to handle high pressure.
What are arteries?
Eating this type of fat too often can clog arteries.
What are saturated or trans fats?
This liquid transports nutrients, gases, and waste.
What is blood?
These vessels return oxygen-rich blood from the lungs.
What are pulmonary veins?
The “wall” that separates the right and left sides of the heart.
What is the septum?
These vessels have valves to prevent blood from flowing backward.
What are veins?
This is the name for high blood pressure.
What is hypertension?
These cells help fight infection in the body.
What are white blood cells?
This chamber pumps oxygenated blood to the entire body.
What is the left ventricle?
This layer of the heart is the muscular layer that contracts to pump blood.
What is the myocardium?
This major vein brings deoxygenated blood into the right atrium.
What is the vena cava?
Exercise strengthens this muscle in your body.
What is the heart?
This is the name of the system that includes the heart, arteries, veins, and capillaries.
What is the circulatory system?
List the four chambers in the correct order of blood flow starting with deoxygenated blood.
What is: right atrium → right ventricle → left atrium → left ventricle?
These are the heart’s two upper chambers.
What are the atria?
These vessels supply the heart muscle itself with oxygenated blood.
What are the coronary arteries?
This condition happens when blood flow to part of the heart is blocked, causing tissue damage.
What is a heart attack (myocardial infarction)?