Ch. 23 Circulatory System

What is the function of arteries in the circulatory system?

• To carry blood to the heart

• To carry blood away from the heart

• To connect arteries and veins

• To pump blood

Which cells in the blood are primarily responsible for fighting disease?

• Red blood cells

• Platelets

• White blood cells

• Capillaries

What is the role of hemoglobin in the blood?

• To carry oxygen

• To clot blood

• To fight infections

• To pump blood

What is the primary component of the yellow-colored liquid part of blood?

• Platelets

• White blood cells

• Red blood cells

• Plasma

Which type of blood vessels are the smallest and involved in the exchange of substances between blood and tissues?

• Arteries

• Veins

• Capillaries

• Platelets

What is the main function of the heart in the circulatory system?

• To clot blood

• To carry oxygen

• To pump blood

• To fight disease

Which component of the blood is crucial for clotting?

• Red blood cells

• Hemoglobin

• Platelets

• Plasma

What is the primary function of veins in the circulatory system?

• To carry blood away from the heart

• To connect arteries and veins

• To carry blood to the heart

• To pump blood

Label the three components of the blood in the photo on the right.

What is the liquid part of your blood that contains water, salts, and proteins?

• Plasma

• Platelets

• Capillaries

• Arteries