Narcotic: Opiate medication used fro treatment
Nerve block: An injection that causes numbness
and weakness by preventing function of a nerve.
Nerve conduction Velocity (NCV): The speed
at which an electrical signal travels along a nerve. This
may be abnormal when a nerve is compressed or injured.
Nerve cone: The growing tip of a severed
nerve that it is trying to re-establish its connection after
Nerve tube: A synthetic tube used to help
in repair and reconnection of nerves.
Nerve nervorum: Small nerve fibers that innervate
larger nerve bundles. They allow us to feel pressure on the
Neurofibroma: A tumor arising within a nerve
Neuroma: A clump of tissue, not necessarily
a tumor, that can arise at the site of nerve injury
Neurons: Nerve cells.
Neuropathic pain: Pain that derives in nerves
and may not be responsive to routine pain medications.
Neuropathy: Malfunction in a nerve due to
a medical disease of nerves or to compression of the nerve.
Neuroplasty: surgical release of adhesions
around a nerve carried out to relieve pain and disability.
Neuroprotective agents: Medications that
are intended to help limit the damage suffered by a nerve
or neural tissue such as spinal cord, brain or nerve, when
the blood supply is cut off or there is a traumatic injury.
Nociceptor: A type of nerve ending that produces
a sensation of pain when it is stimulated.
Non-ferrous: A type of metal without iron
Nonsteroidal anti-inflammatory drugs (NSAIDs):
Medications that reduce swelling, inflammation and pain without
the use of steroids, e.g. Tylenol or Motrin.
Notochord: A primitive part of the body plan
in evolution that has remnants in humans in the form of the
nucleus pulposus of the intervertebral discs.
Nuclear medicine: Diagnostic tests that involve
the use of radioactivity administered to the body.
Nucleus pulposus: the soft spongy material
surrounded by the annular ring that makes up the center of
an intervertebral disc.