Across
- 1. muscles protect organs
- 4. muscles found in the heart
- 6. what system links endorphins to exercise
- 7. contraction that is shortening the muscle and going toward the ceiling
Down
- 1. muscles attach tendons to our bones
- 2. a muscle is made up on these
- 3. contraction that is lengthening the muscle and going toward the earth
- 5. The ________ system sends different signals throughout your body