Unit 2 Nervous System

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Across
  1. 2. clusters of brain cells
  2. 4. also known as sensory neuron, transmits impulses from the receptors to the CNS.
  3. 5. one branch of soma
  4. 8. regulates passage of molecules from blood to the brain
  5. 10. This type of cell ultimately produces myelin.
  6. 11. this type of cell supports neuron cell bodies in the ganglia of the PNS
  7. 14. allows axon to conduct impulses faster
  8. 17. smooth muscles, skeletal muscles, glands
  9. 19. more than two branches
  10. 21. nervous system that refers to the collection of neurons located throughout the digestive tract
  11. 22. blank conduction is nerve impulses that jump from node to node as they travel down the axon.
  12. 24. nerves
  13. 27. gap between the axon terminal
  14. 28. two branches of soma
  15. 30. carry impulses from one neuron to another
Down
  1. 1. nerve cells that send messages all over the body
  2. 3. also known as motor neuron, transmits impulses from CNS to effectors
  3. 6. produce myelin in the CNS
  4. 7. The nervous system provides control for the blank activities of the body
  5. 9. controls vital processes
  6. 12. hillock This structure connects the cell body to the axon
  7. 13. This type of cell lines the ventricles and helps form the choroid plexus
  8. 15. a system with rapid activity Endocrine- a system with slow activity
  9. 16. This structure is a extension of the plasma membrane that increase the surface area available to receive stimuli and transmit stimulation towards the cell body
  10. 18. phagocytic cells that migrate throughout the CNS removing debris|
  11. 20. This type of cell supports neurons
  12. 23. blank potentials travel the length of the axon, causing the release of neurotransmitters into the synapse. Also known as impulses
  13. 25. this type of cell forms fatty myelin sheaths around most axons in the PNs only. Also known as Neurolemmocytes.
  14. 26. Nodes of blank are gaps between segments of myelin
  15. 29. brain and spinal cord