Class X

The portion of the nervous system that is considered involuntary is the
  1. somatic nervous system
  2. sensory nervous system
  3. autonomic nervous system
  4. motor nervous system.
The neuroglia that produce myelin sheaths around axons in the peripheral nervous system are
  1. Schwann cells
  2. oligodendrocytes
  3. microglia
  4. astroctyes.
Neurotransmitters are released at the
  1. dendrite
  2. axon terminal
  3. cell body
  4. myelin sheath
Processes that carry nerve impulses away from the cell body are called
  1. axons
  2. synapses
  3. myelin sheaths
  4. dendrites
In the reflex arc, a muscle or gland is considered to be the
  1. receptor
  2. integrating center
  3. motor neuron
  4. effector.
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