CNS: Spinal Cord Function. Communication between the Brain and the PNS. Example: hand touched sensory fibers generate nerve impulses passes through sensory neurons spinal cord ascending tract brain.
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Midbrain – relay station for tracts
Pons – contains bundles of axons traveling between the cerebellum and the rest of the CNS.
Medulla Oblongata - contains a lot of reflex centers for controlling heartbeat, breathing, and vasoconstriction.