Across
- 2. chemical building block of all body structures, two or more atoms combine to make this
- 4. layer that lines the walls of the body cavity
- 5. smallest unit of an element
- 11. layer that covers the organs
- 13. position that is closer to the surface of the body
- 14. position that is farther from the surface of the body
- 15. plane that divides the body into front and rear
- 17. front or direction toward the front of the body
- 18. membrane that surrounds the heart in the pericardial cavity
- 19. smallest independently functioning unit of a living organism
- 20. farther from the point of attachment or trunk of the body
Down
- 1. back or direction toward the back of the body
- 3. side or direction toward the side of the body
- 6. middle or direction toward the middle of the body
- 7. position below or lower than another part
- 8. plane that divides the body horizontally
- 9. plane that divides the body into right and left
- 10. position above or higher than another part
- 12. closer to point of attachment or trunk of the body
- 16. membrane that surrounds several organs in abdominopelvic cavity
- 18. membrane that surrounds the lungs in the pleural cavity