Week 9 - Nervous System Definitions

Edit Answers
123456789101112131415161718192021222324252627
Across
  1. 3. _____________ molecules used by the nervous system to send messages between neurons, or from neurons to muscles.
  2. 9. _____________ cells which wrap around axons of motor and sensory neurons to form the myelin sheath.
  3. 10. ___________ type of receptors that respond to epinephrine and norepinephrine.
  4. 11. ___________ type of receptors that respond to the neurotransmitter 'acetylcholine' (ACh).
  5. 14. _______________ a small pocket of space between two cells where they can pass messages to communicate.
  6. 17. _____________ nervous system, carries messages to and from the CNS.
  7. 18. ____________ type of propagation where the action potential appears to leap from node to node.
  8. 20. ___________ largest and most numerous neuroglia. Maintain the blood brain barrier.
  9. 22. _____________ matter made up of myelinated nerves.
  10. 23. ______________ part of the neuron which carries information toward other cells.
  11. 24. _____________ an insulating covering that speeds up nerve signal transmission.
  12. 25. _________ middle layer of the meninges, a web-like structure filled with fluid that cushions the brain.
  13. 26. _________ the tough outer layer of tissue that covers and protects the brain and spinal cord and is closest to the skull.
  14. 27. the axon ___________ is the point of communication with another cell.
Down
  1. 1. _____________ part of the neruon which receives information.
  2. 2. multi, uni, or bi may be prefixes for these unique types of neurons. _____________
  3. 4. ____________ produce the myelin sheath.
  4. 5. ____________ respond to sensory stimuli.
  5. 6. ___________ refers to the internal organs in the main cavities of the body, especially those in the abdomen.
  6. 7. nodes of ____________ are unmyelinated gaps between cells which allow action potential to jump.
  7. 8. _____________ supporting cells of the nervous system, which provide structure and protection.
  8. 12. ______________ nervous system, integrates and coordinates sensory data and motor commands.
  9. 13. ______________ outer surface of schwann cells.
  10. 15. _________ the delicate inner layer of the meninges.
  11. 16. ____________ sense changes in the internal or external environment.
  12. 18. ______________ cells which surround cell bodies and regulate the environment around neurons.
  13. 19. _____________ specialized cells for conduction of impulses.
  14. 21. ___________ means "body."