Chapter 13, Support & Movement, 13D
Across
- 1. skeletal muscles often work in _____
- 7. contracting muscles help keep body at a constant temperature
- 8. process that allows muscles to get enough oxygen when there is not enough in the bloodstream
- 9. muscle not controlled at will
Down
- 2. contracting muscles that pull on bones, push food, and pump blood
- 3. striped voluntary muscle in skeletal muscles
- 4. involuntary muscle as in the nervous system and digestive organs
- 5. muscle controlled at will
- 6. involuntary and striated muscle of the heart