The Human Body: A Marvel of Nature

What is the primary function of the heart in the human body?

• To pump blood throughout the body

• To help us breathe

• To protect vital organs

• To regulate body temperature

Which organ is responsible for taking in oxygen and releasing carbon dioxide?

• Heart

• Lungs

• Skin

• Brain

What role do bones play in the human body?

• They help us breathe

• They form the framework and protect vital organs

• They pump blood

• They regulate body temperature

How does the skin help regulate body temperature?

• By contracting and relaxing muscles

• By sending messages through the nervous system

• By sweating to cool us down

• By pumping blood

What is the function of the brain in the human body?

• To act as a protective barrier

• To pump blood

• To control emotions and coordinate actions

• To help us breathe