Heart Anatomy
Blood Flow Through the Heart
Blood Vessels
Cardiovascular system fun facts
Blood components
100

This organ is responsible for pumping blood throughout the body

What is the Heart?

100

Blood low in oxygen enters the heart through this chamber first

What is the right atrium?

100

These blood vessels carry oxygen-rich blood away from the heart

What are arteries?

100

The heart beats about this many times each day

What is 100,000 times?

100

These blood cells carry oxygen to your body's tissues

What are red blood cells?

200

These upper chambers of the heart receive blood from the body or lungs

What is the atria?

200

Blood travels from the right ventricle to the lungs through this artery

What is the pulmonary artery?

200

These vessels carry oxygen-poor blood back to the heart

What are veins?

200

The heart is about the size of this part of your body

What is your fist?

200

These blood cells help fight infections

 What are white blood cells?

300

This wall separates the left and right side of the heart

What is the septum?

300

After picking up oxygen in the lungs, blood returns to the heart through these veins

What are the pulmonary veins?

300

These tiny vessels connect arteries and veins and allow oxygen and nutrients to pass into tissues

What are capillaries?

300

Blood helps regulate this, explaining why you get red when you’re hot

What is body temperature?

300

 This part of the blood helps it clot when you get a cut

What are platelets?

400

This valve prevents blood from flowing backwards between the lefty atrium and left ventricle

What is the mitral valve (bicuspid)?
400

Blood leaves the left ventricle through this largest artery to deliver oxygen to the bod

What is the aorta?

400

This largest vein returns blood from the lower body to the heart

What is the inferior vena cava?

400

The heart is considered this type of muscle because it contracts on its own

What is cardiac muscle?

400

This protein found in red blood cells binds to oxygen

What is hemoglobin?

500

The heart has many chambers

What is four?

500

This valve prevents blood from flowing backward from the right ventricle to the right atrium

What is the tricuspid valve?

500

These arteries supply blood directly to the heart itself

What are coronary arteries?

500

Blood travels about this distance through your body every day

What is 60,000 miles? 

500

Blood plasma is mostly made up of this liquid

What is water?