Bio crossword Ch. 11

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Across
  1. 2. supports and connects body parts
  2. 4. multilayered cells, providing protection as in the skin
  3. 9. Non-cellular layer directly beneath the epithelial layer composed of proteins, provides natural structural support to overlying cells
  4. 11. Provides strength and elasticity
  5. 12. Fibroblasts, macrophages, lymphocytes, and neutrophils
  6. 13. Strong slightly flexible fibers
  7. 15. Stimulus not strong enough, will not generate sensation
  8. 16. Tight junctions sealing the plasma membranes together, digestive tract is an example.
  9. 18. Thinner, stretchy fibers
  10. 20. “Positively” charged, closer to zero
  11. 21. Cube shaped cells, form the lining of the kidney tubules; glandular tissues, etc
Down
  1. 1. Potential for generating/sending signal
  2. 3. Period when an action potential cannot be generated, ONE SIGNAL AT A TIME!!
  3. 5. Considered the domino effect, action potential moves like a wave through the axon generating(consisting of a constant speed and amplitude)
  4. 6. Column shaped, Tall and rectangular. Lining the digestive tract, certain reproductive organs, as well as the layrnx
  5. 7. Permits some movement between cells, also allowing tissues to stretch and bend(ex, skin)
  6. 8. Flattened,forms outer surface of skin, lines blood vessels, Lungs, mouth, throat, etc
  7. 10. Thin inter-connective fibers of collogen, providing structure framework for soft organs(liver, spleen, lymph nodes)
  8. 14. Negatively charged, more unstable and further from zero
  9. 17. Consists of protein channels enabling movement of the materials between adjacent cells(communication)
  10. 19. single layer, adapted for diffusion across cells barriers, glands respiratory, digestive and reproductive systems