Muscular System
Across
- 2. Known as skeletal, or voluntary, muscles
- 5. Conscious control over these muscles
- 6. Under the control of the autonomic nervous system
Down
- 1. Gives us the ability to move
- 2. Produce relatively slow contractions
- 3. Forms most of the walls of the heart
- 4. Muscle loss and weakness. Includes nine types, all unknown causes