1. The Circulatory System Get ready for the quiz!!!

2. The Circulatory System 1. What do vessel walls contain to help move blood?

3. The Circulatory System 2. Which animal would have the fastest heartbeat? Bear Whale Cardinal Elephant

4. The Circulatory System 3. What do we call the tiniest blood vessels in the body?

5. The Circulatory System 4. What discovery did William Harvey make?

6. The Circulatory System 5. The human heart has how many chambers?

7. The Circulatory System Review your answers…