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Narcotic: Pain relieving drug related in action and structure to the
opiates. A powerful pain-relieving drug associated with potential to cause
significant alteration of mood and dependence following repeated administration.
Nerve: The body's communication system; nerves carry messages back
and forth between the brain and all body parts.
Nerve Block: Pain relief method in which an anesthetic is injected into a
Nerve roots: Nerve projections from the spinal cord.
Neurologist: A physician who specializes in treating diseases of the
Neuropeptide Y: Is the key hunger transmitter in the brain. It signals the
hypothalamus to eat. The action of neuropeptide Y is the opposite of that
Neurosurgeon: A physician who specializes in surgery on the brain, nerves,
and spinal cord.
Neurotransmitter: A chemical produced in the brain that sends messages between
Nucleus pulposus: Soft center of an intervertebral disc, made up of
Nutrition: The relationship
of food to the well-being of the body.
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