Circulatory System Quiz

What is the role of white blood cells in the circulatory system?

• To transport oxygen throughout the body.

• To fight infections and protect the body against diseases.

• To regulate body temperature.

• To aid in the digestion of food.

What is the main purpose of red blood cells?

• To transport oxygen from the lungs to the body's tissues.

• To fight infections in the body.

• To regulate body temperature.

• To produce hormones for growth.

What are the names of the valves that control blood flow from the atria to the ventricles?

• Aortic and pulmonary valves

• Mitral and tricuspid valves

• Pulmonary and aortic valves

• Coronary and semilunar valves

What is the role of capillaries in the circulatory system?

• To facilitate the exchange of oxygen, carbon dioxide, nutrients, and waste between blood and tissues.

• To pump blood throughout the body.

• To store blood for later use.

• To produce red blood cells.

What is the role of the pulmonary veins?

• To carry deoxygenated blood from the heart to the lungs.

• To carry oxygenated blood from the lungs to the heart.

• To filter blood before it enters the heart.

• To transport carbon dioxide from the body to the lungs.

What is blood pressure?

• The amount of blood in the body.

• The force exerted by circulating blood on the walls of blood vessels.

• The rate at which blood flows through the heart.

• The thickness of the blood in the vessels.

What type of blood do arteries carry?

• Deoxygenated blood to the lungs

• Oxygenated blood away from the heart (except for the pulmonary artery)

• Nutrient-rich blood to the organs

• Carbon dioxide-rich blood to the heart

What type of blood does the Superior Vena Cava carry?

• Oxygenated blood from the lungs to the heart.

• Deoxygenated blood from the upper body to the heart.

• Nutrient-rich blood from the digestive system to the heart.

• Deoxygenated blood from the lower body to the heart.

What is the significance of the mitral valve?

• It prevents backflow of blood from the left ventricle to the left atrium.

• It allows blood to flow from the left atrium to the left ventricle.

• It separates the left atrium from the right atrium.

• It prevents backflow of blood from the aorta to the left ventricle.

What is the main function of the circulatory system?

• To transport oxygen, nutrients, hormones, and waste products throughout the body.

• To provide structural support to the body.

• To facilitate digestion and absorption of food.

• To regulate body temperature and maintain homeostasis.