Answer:
brain stem that controls involuntary body functions
brain stem - part of the central nervous system that is enclosed in the spinal column
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central nervous system - the brain and the spinal cord
cerebellum - part of the brain that coordinates movement
cerebrum - the largest part of the brain
electrical impulse - a sudden surge of energy in one direction
medulla - part brain stem that controls involuntary body functions
peripheral nervous system - nerves throughout the body
spinal cord - part of the central nervous system enclosed in the spinal column
