Human Heart Quiz (Science) Class 10

What is the heart's main function in the human body?

• Pumping blood

• Producing hormones

• Filtering air

• Digesting food

Imagine you are a medical student in a classroom. Your professor asks, 'Which chamber of the heart receives oxygen-rich blood from the lungs?'

• Left ventricle

• Right atrium

• Right ventricle

• Left atrium

What prevents the oxygen-rich blood from mixing with the blood containing carbon dioxide in the heart?

• Chambers

• Muscular walls

• Valves

• Lungs

Where does the de-oxygenated blood go to be oxygenated from the heart?

• Kidneys

• Liver

• Brain

• Lungs

Which chamber of the heart pumps oxygen-rich blood to the rest of the body?

• Right atrium

• Right ventricle

• Left atrium

• Left ventricle

What happens when the left atrium relaxes in the heart?

• Collects oxygen-rich blood

• Pumps blood to the body

• Transfers blood to the lungs

• Expands the right ventricle

Which chamber of the heart has thicker muscular walls?

• Left ventricle

• Right atrium

• Right ventricle

• Left atrium

What is the function of valves in the heart?

• Expand chambers

• Oxygenate blood

• Prevent blood flow backwards

• Pump blood

Where does the carbon dioxide-rich blood go to have the carbon dioxide removed?

• Lungs

• Muscles

• Stomach

• Skin

Which chamber of the heart receives de-oxygenated blood from the body?

• Left atrium

• Right atrium

• Left ventricle

• Right ventricle