Skeletal System and Nervous System

12345
Across
  1. 2. I help you think and remember.
  2. 3. We are two in number and help you breathe.
  3. 5. I pump blood to all parts of the body.
Down
  1. 1. I am the point where two bones meet.
  2. 2. I am the hard part of the body.
  3. 4. I am a bag-like structure and help to churn the food you eat.