Across
- 2. generate, send and receive electrical signals
- 6. cushions and reduces friction where bones join and move
- 7. exposed to the outside environment, respiratory, reproductive, digestive tracts
- 10. resists against external forces, maintain organ shape
- 12. scaffold that keeps cells in place
- 16. with microvilli will have increased surface area for absorption
- 17. when single layer can be used for diffusion, lungs & vessels
- 19. inside space of hollow organ
- 20. act as barriers for protection, secretion and glands
- 21. secrete mucus in respiratory and digestive tracts
- 22. secrete chemicals that enter the blood
- 24. muscle that pulls on bone
- 25. movement of bones, propels blood, surrounds hollow organs
Down
- 1. sends information using electrical signals
- 3. multiple layers of cells
- 4. continuously contracting cells of the heart
- 5. insulation and cushioning, mostly of white fat with few mitochondria
- 8. rigid tissue to protect soft organs and allow for movement with muscles
- 9. supporting cells of the nervous tissue
- 11. when single layer can be used for secretion and absorption
- 13. secrete chemicals outside the body
- 14. muscle found in hollow organs
- 15. fibers resistant to stretch
- 18. stratified epithelium that undergoes stretching
- 23. provide stretch and recoil