Circulatory System! for 6th graders!! :D

What is the main function of the circulatory system?

• Storing excess nutrients

• Transporting oxygen, nutrients, and hormones to cells and removing waste products

• Regulating body temperature

• Producing red blood cells

Which organ is responsible for pumping blood throughout the body?

• liver

• kidney

• spleen

• heart

What is the liquid part of blood called?

• mucus

• plasma

• gel

• serum

What is the difference between oxygenated and deoxygenated blood?

• Oxygenated blood flows through the veins, while deoxygenated blood flows through the arteries.

• Oxygenated blood is blue, while deoxygenated blood is red.

• Oxygenated blood contains oxygen, while deoxygenated blood does not.

• Oxygenated blood is thicker than deoxygenated blood.

What is the average heart rate of a resting adult?

• 120-150 beats per minute

• 60-100 beats per minute

• 10-30 beats per minute

• 20-50 beats per minute

What is the purpose of the valves in the heart?

• To control the release of hormones

• To ensure proper blood flow through the heart

• To aid in digestion

• To regulate body temperature

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

• Produce insulin

• Fight off infections and foreign invaders

• Transport oxygen to the body

• Regulate blood pressure