Grade 4 Circulatory System Quiz

What is the main function of the heart?

• Pumping blood to all parts of the body

• Digesting food

• Filtering waste from the blood

• Regulating body temperature

Name the four chambers of the heart.

• front atrium, back atrium, front ventricle, back ventricle

• big atrium, small atrium, big ventricle, small ventricle

• right atrium, right ventricle, left atrium, and left ventricle

• upper atrium, lower atrium, upper ventricle, lower ventricle

What is the purpose of the valves in the heart?

• To control the flow of blood and prevent it from flowing backwards

• To produce hormones

• To regulate body temperature

• To help with digestion

Explain the process of blood circulation in the body.

• The heart pumps oxygen-rich blood to the body's tissues and organs through arteries, while the veins carry oxygen-poor blood back to the heart.

• The liver pumps blood to the body's tissues and organs through arteries, while the lungs carry blood back to the heart.

• The stomach pumps oxygen-poor blood to the body's tissues and organs through arteries, while the intestines carry oxygen-rich blood back to the heart.

• The brain pumps oxygen-rich blood to the body's tissues and organs through veins, while the muscles carry oxygen-poor blood back to the heart.

What are the three types of blood vessels in the circulatory system?

• Aorta, pulmonary artery, vena cava

• Left atrium, right ventricle, septum

• Arteries, veins, and capillaries

• Red blood cells, white blood cells, platelets

What is the function of arteries in the circulatory system?

• Carry oxygenated blood away from the heart

• Carry blood from the lungs to the rest of the body

• Have no function in the circulatory system

• Carry deoxygenated blood towards the heart

Describe the function of the heart in the circulatory system.

• Stores excess nutrients

• Filters waste from the blood

• Pumps blood to all parts of the body

• Regulates body temperature

How does the heart pump blood throughout the body?

• By contracting and relaxing to create pressure

• By expanding and contracting like a balloon

• By releasing hormones into the bloodstream

• By sending electrical signals