The function of the circulatory system is

• To distribute blood, oxygen, and nutrients throughout the body.

• To digest food and absorb nutrients.

• To transmit nerve signals to the brain.

• To remove waste products from the body.

The major components of the circulatory system are:

• Heart only

• Blood vessels only

• Heart, blood vessels, and blood

• None

The role of the heart is to pump blood.

• It filters blood.

• It pumps blood.

• It regulates body temperature.

• It digests food.

Which of the following is a chamber of the heart?

• Right Atrium

• Left Atrium

• Right Ventricle

• All of the above

What is the function of valves in the heart?

• Regulate the direction of blood flow

• Pump blood through the heart

• Supply oxygen to the blood

• Store blood temporarily

Fill in the blank: Blood enters the Right Atrium through the ________.

• Vena Cava

• Pulmonary Veins

• Aortic Arch

• Coronary Sinus

Gas exchange in the lungs involves oxygen from inhaled air diffusing into the blood while carbon dioxide diffuses out.

• Oxygen enters the blood and carbon dioxide exits

• Oxygen exits the blood and carbon dioxide enters

• Both oxygen and carbon dioxide enter the blood

• No gas exchange occurs

Tags

NGSS.MS-LS1-3

NGSS.MS-LS2-3

Fill in the blank: Blood returns to the Left Atrium via the ________.

• Pulmonary Veins

• Superior Vena Cava

• Inferior Vena Cava

• Pulmonary Arteries

Arteries are responsible for carrying blood away from the heart.

• They carry oxygenated blood from the heart to the body.

• They transport deoxygenated blood back to the heart.

• They filter blood to remove waste.

• They store fat and cholesterol.

Which blood component carries oxygen using hemoglobin?

• White Blood Cells

• Red Blood Cells

• Platelets