All About the Heart

What is the name of the heart's upper chambers?

• atria

• ventricles

• valves

• septum

What do the heart's lower chambers do?

• The heart's lower chambers pump blood out of the heart.

• The heart's lower chambers filter blood before it enters the heart.

• The heart's lower chambers store blood before it is pumped.

• The heart's lower chambers receive blood from the lungs.

What is the main job of the heart?

• To pump blood throughout the body.

• To produce hormones for the body.

• To filter toxins from the blood.

• To digest food and absorb nutrients.

How does blood travel through the heart?

• Blood flows from the left atrium to the right ventricle directly.

• Blood travels through the heart in a cycle: right atrium → tricuspid valve → right ventricle → pulmonary valve → lungs → left atrium → mitral valve → left ventricle → aortic valve → body.

• Blood enters the heart through the aorta and exits through the pulmonary artery.

• Blood circulates through the heart in a straight line without valves.

What do arteries do?

• Arteries carry carbon dioxide-rich blood to the heart.

• Arteries transport nutrients from the digestive system to the brain.

• Arteries are responsible for filtering blood in the kidneys.

• Arteries carry oxygen-rich blood away from the heart.

What do veins do?

• Veins carry oxygenated blood away from the heart.

• Veins are responsible for pumping blood throughout the body.

• Veins filter toxins from the blood before it reaches the heart.

• Veins carry deoxygenated blood back to the heart.

What is oxygen?

• Oxygen is a form of energy used in machines.

• Oxygen is a type of gas used in cooking.

• Oxygen is a planet in our solar system.

• Oxygen is a chemical element essential for life, represented by the symbol O.

Where does the heart send oxygen-rich blood?

• To the lungs for oxygenation.

• To the stomach for digestion.

• The rest of the body via the aorta.

• To the brain for processing.

What happens to carbon dioxide in the lungs?

• Carbon dioxide is absorbed into the bloodstream.

• Carbon dioxide is stored in the lungs for later use.

• Carbon dioxide is converted into oxygen in the lungs.

• Carbon dioxide is expelled from the body during exhalation.

Why is the heart important for our body?

• The heart is responsible for digestion and metabolism.

• The heart is primarily involved in the immune response.

• The heart is important because it circulates blood, providing oxygen and nutrients to the body and removing waste.

• The heart helps in the production of hormones.