Blood Components and Tissue Fluid

What are the main components of blood?

• Red blood cells, white blood cells, and plasma

• Plasma, platelets, and hormones

• Red blood cells, hormones, and plasma proteins

• White blood cells, plasma proteins, and food molecules

What percentage of plasma is water?

• About 70%

• About 80%

• About 90%

• About 100%

Which of the following is NOT a solute commonly found in plasma?

• Amino acids

• Glucose

• Red blood cells

• Minerals

What is the function of arteries in the circulatory system?

• Vessels that carry blood back to the heart

• Small blood vessels that distribute blood from an artery to the capillaries

• Vessels that carry blood away from the heart

• Small blood vessels that collect blood from capillaries and lead into the veins

What are arterioles?

• Vessels that carry blood back to the heart

• Small blood vessels that collect blood from capillaries and lead into the veins

• Vessels that carry blood away from the heart

• Small blood vessels that distribute blood from an artery to the capillaries

Which vessels are responsible for carrying blood back to the heart?

• Arteries

• Arterioles

• Veins

• Venules

What role do venules play in the circulatory system?

• They carry blood away from the heart

• They distribute blood from an artery to the capillaries

• They carry blood back to the heart

• They collect blood from capillaries and lead into the veins

Which blood vessels are the smallest and are sites of exchange between blood and tissue fluid?

• Arteries

• Veins

• Capillaries

• Arterioles

What is the function of the arterioles in the circulatory system?

• To carry blood away from the heart to various parts of the body

• To serve as the primary site of vascular resistance

• To exchange gases, nutrients, and waste products with tissues

• To return deoxygenated blood back to the heart

What is the role of venules in the circulatory system?

• They carry oxygenated blood to the heart.

• They connect capillaries to larger veins.

• They are the primary site of gas exchange.

• They transport blood directly from the heart to the tissues.