The Heart's Rhythm and Blood Flow Explained

The video explains the heart's role in circulating blood, detailing its structure, including chambers and valves. It describes the process of blood circulation, highlighting how oxygenated and deoxygenated blood flows through the heart and body, emphasizing the importance of arteries, veins, and capillaries in this process.

How many times does the human heart beat in a day?

• 200,000 times

• 50,000 times

• 100,000 times

• 150,000 times

What is the primary function of blood vessels?

• To store blood

• To transport blood throughout the body

• To produce blood cells

• To filter blood

Which of the following is NOT a chamber of the heart?

• Right atrium

• Left atrium

• Right ventricle

• Pulmonary vein

What type of valves are found in the heart?

• Two-way valves

• One-way valves

• Three-way valves

• Four-way valves

Where does the blood become oxygen-rich?

• In the liver

• In the lungs

• In the kidneys

• In the heart

Through which vessel does oxygenated blood leave the heart?

• Pulmonary artery

• Capillaries

• Aorta

• Vena cava

What happens to blood in the capillaries?

• It is stored

• It becomes oxygenated

• It is filtered

• It becomes deoxygenated

Which vessel carries deoxygenated blood back to the heart?

• Pulmonary vein

• Aorta

• Capillaries

• Vena cava

What is the role of the pulmonary artery?

• To carry deoxygenated blood to the heart

• To carry oxygenated blood to the body

• To carry deoxygenated blood to the lungs

• To carry oxygenated blood to the heart

What completes the circulatory cycle?

• Blood being pumped by the heart

• Blood being stored in the liver

• Blood being oxygenated in the lungs

• Blood being filtered by the kidneys