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5 Written questions

5 Multiple choice questions

  1. are nerve cells that run through our entire bodies and communicate with each other; each of us has 100 billion of these, most of which are in the brain
  2. neurons send messages across synapses through the release of this; these are the chemicals that are stored in sacs in the axon terminals
  3. at the end of the axon, these small fibers branch out
  4. is a junction between the axon terminals of one neuron and the dendrites of another; messages only travel in one direction
  5. transmits messages away from the cell body; a neuron usually has only one axon; they vary greatly in length.

4 True/False questions

  1. dendritesthin fibers branching out from the cell body; they receive info from other neurons and pass the message through the cell body; carries info to the cell body

          

  2. nervous systemconsists of the brain and the spinal cord

          

  3. myelintransmits messages away from the cell body; a neuron usually has only one axon; they vary greatly in length.

          

  4. autonomic nervous systemregulates the body's vital functions, such as heartbeat, breathing, digestion, and blood pressure; we generally do not think of these activities