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Student Center Anatomy and Physiology, Second Edition
The unity of form and function
Kenneth S. Saladin
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Chapter 13: Nervous Tissue

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 Recall Test

  1. Neurons that convey information to the CNS are called sensory, or , neurons.
  2. To perform their role, neurons must have the properties of excitability, , and secretion.
  3. The is a period of time in which a neuron is producing an action potential and cannot be reexcited by a stimulus of any strength.
  4. The processes of a neuron specialized to receive incoming signals are called .
  5. Myelin is produced by cells.
  6. In a myelinated nerve fiber, action potentials are produced only at regions called .
  7. The trigger zone of a neuron consists of its and .
  8. Neurotransmitters that work through second-messenger systems are said to have effects.
  9. A presynaptic nerve fiber cannot cause other neurons in its to fire, but it can cause them to be more sensitive to input from other presynaptic neurons.
  10. are substances that may be released along with a neurotransmitter and modify the effects of the neurotransmitter on a postsynaptic cell.


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