Exam review B

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Across
  1. 2. epithelium tissue used in gas exchange
  2. 10. releases bile to help break down lipids
  3. 12. breaks in the myelin sheath were current is recharged
  4. 13. cells that maintain and support neurons
  5. 16. epithelium is useful in expansion and contraction
  6. 17. region where the mouth meets the esophagus and trachea
  7. 18. consists of plasma, erythrocytes, and leukocytes
Down
  1. 1. Nervous system which transmits sensory information to the brain
  2. 3. Insulin and this compact form of glucose balance blood sugar levels
  3. 4. _____ neurons transmit signals to muscle cells
  4. 5. since sympathetic and parasympathetic nervous systems are opposites, they are called _______
  5. 6. incomplete digestive tracts have a ________ cavity
  6. 7. K+ channels stay open a little too long; membrane potential becomes extra negative
  7. 8. connective tissue is either spongy(porous) or compact
  8. 9. receive signals from other neurons
  9. 11. These cells produce the cerebral spinal fluid
  10. 14. These cells remove wastes and provide nutrients to neurons
  11. 15. stomach that stores gravel/grit in avians