The Ciculatory System

1. What is the main function of the circulatory system?

• To regulate body temperature.
• To produce hormones for growth.
• To filter waste from the blood.
• To transport blood and nutrients throughout the body.

2. Which component of the circulatory system is primarily responsible for oxygen transport?

• Plasma

• Platelets

• White blood cells

• Red blood cells

3. What is the role of the heart in the circulatory system?

• To pump blood throughout the body.

• To regulate blood pressure.

• To filter toxins from the blood.

• To produce red blood cells.

4. How does the circulatory system help in maintaining homeostasis?

• By breaking down waste products.

• By storing nutrients.

• By producing antibodies.

• By regulating body temperature and pH levels.

5. What type of blood vessel carries oxygen-rich blood away from the heart?

• Veins

• Capillaries

• Arteries

• Venules