Understanding the Circulatory System

What is the primary function of the circulatory system?

• Generating energy

• Filtering waste products

• Producing blood cells

• Transporting nutrients and gases

What color is human blood inside the body?

• Blue

• Transparent

• Green

• Red

Which component of blood is primarily responsible for transporting gases?

• Plasma

• Platelets

• Red blood cells

• White blood cells

What is the main role of platelets in the blood?

• Clotting blood

• Fighting infections

• Regulating temperature

• Transporting oxygen

Which heart chamber receives deoxygenated blood from the body?

• Right ventricle

• Left atrium

• Left ventricle

• Right atrium

What type of blood do arteries typically carry?

• Mixed

• None

• Oxygen-rich

• Deoxygenated

Through which valve does blood pass from the right atrium to the right ventricle?

• Tricuspid valve

• Pulmonary valve

• Mitral valve

• Aortic valve

Where does the oxygenation of blood occur?

• Kidneys

• Liver

• Lungs

• Heart

Which artery provides the heart itself with blood?

• Carotid artery

• Coronary artery

• Pulmonary artery

• Aorta

What is the function of the aortic valve?

• To regulate blood flow from the left ventricle to the aorta

• To prevent backflow into the left atrium

• To regulate blood flow to the lungs

• To prevent backflow into the left ventricle