Across
- 3. what is the largest muscle in your body as a group?
- 5. what is breathing in?
- 7. what is the strongest muscle in your body pound for pound?
- 8. what is the longest bone in your body?
Down
- 1. What system involves breathing?
- 2. what bone protects the brain?
- 4. CP What system last for 3 to 10 seconds?
- 6. muscle in the back of your leg?
- 8. what do you eat?