Nervous System

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Across
  1. 4. cells that nourish or insulate neurons
  2. 7. part of brain that develops into 3 regions: epithalamus, thalamus & hypothalamus
  3. 10. in the frontal lobe is active when speech is formed
  4. 12. in the temporal lobe is active when speech is heard
  5. 15. neurons that transmit information away from the CNS
  6. 16. The differences in hemisphere function
  7. 19. cluster of nerve cells in the CNS
  8. 20. an increase in magnitude of the membrane potential
  9. 21. Regulates homeostasis & basic survival behaviors
  10. 23. consists of neuron cell bodies, dendrites, and unmyelinated axons
  11. 24. Includes pineal gland and generates CSF from blood
  12. 25. clustering of sensory organs at the front end of the body
  13. 27. coordinates brain centers & has 3 parts: midbrain, pons, medulla oblongata
  14. 28. bundles that consist of the axons of multiple nerve cells
  15. 29. part of neuron that transmits signals to other cells at synapses
Down
  1. 1. receives & integrates sensory information
  2. 2. cluster of neurons in the PNS
  3. 3. part of neuron that receives signals from other neurons
  4. 5. regulates breathing centers in medulla
  5. 6. a reduction in the magnitude of the membrane potential
  6. 8. cone shaped base of axon
  7. 9. centers to control several functions
  8. 11. junction between an axon and another cell
  9. 12. consists of bundles of myelinated axons
  10. 13. structure most important to the storage of emotion; a mass of nuclei near the base of the cerebrum
  11. 14. neurons that transmit information to the CNS
  12. 17. a common neurotransmitter in vertebrates and invertebrates
  13. 18. relatively short chains of amino acid; function as neurotransmitters
  14. 22. main input center for sensory info also main output center for motor info
  15. 25. part of brain that is involved in learning & remembering motor skills
  16. 26. nerve cells that transfer information within the body