Across
- 6. microscopic air sacs in the lungs
- 7. period of work or contraction of the heart
- 8. movement towards the midline
- 11. straightening a limb
- 13. turning palm up
- 14. bending a limb
- 15. movement away from the midline
Down
- 1. liquid portion of the blood
- 2. period of relaxation of the heart
- 3. turning palm down
- 4. movement around a central axis
- 5. hair like projections
- 9. bending backward or bending the foot towards the knee
- 10. moving in a circle at a joint
- 12. the iron-containing protein of the red blood cells