introduction to the blood

What is the definition of blood?

• Muscle tissue that pumps oxygen

• Fluid that breaks down food

• Connective tissue that circulates throughout the body

• Solid tissue found in bones

What is the average blood volume in an adult human?

• 2–3 liters

• 3–4 liters

• 4–6 liters

• 7–9 liters

What color does oxygenated blood have?

• Dark blue

• Yellow

• Bright red

• Purple

What is the viscosity of blood compared to water?

• Same as water

• 4–5 times more viscous

• Twice less viscous

• Blood is not viscous

What is the pH range of normal blood?

• 6.0–6.5

• 7.35–7.45

• 8.0–8.5

• 5.0–5.5

Which of the following is NOT a function of blood?

• Transportation of nutrients

• Regulation of body temperature

• Production of energy

• Protection against infection

Which component of blood helps in coagulation?

• Erythrocytes

• Plasma

• Platelets

• Leukocytes

Which part of the blood carries hormones and nutrients?

• Leukocytes

• Platelets

• Plasma

• Erythrocytes

How does blood help regulate body temperature?

• Producing heat in the bones

• Distributing heat throughout the body

• Storing heat in the liver

• Cooling only the brain

What function do leukocytes perform?

• Transportation of oxygen

• Protection against infection

• Blood clotting

• Production of hormones