pse4u questions

1.How many muscles does the human body have?

2.What are muscles made of?

3. Name 3 places in the body where you would find smooth muscle.

4.Is the heart a muscle?

5.Describe how a muscle knows how to contract

6. What is the busiest muscle in the human body?

7.What is the largest muscle in the human body?

8.Name the muscle that bends the arm.

9.Name the muscle group that moves the mouth