What
is Spinal Cord Injury?
Spinal
cord injury, or SCI, is damage to the spinal cord. The spinal
cord is protected by the bones of the spine, called vertebrae.
Vertebrae are stacked on top of each other. A tunnel goes
through the bones. The spinal cord and nerves go from the
brain to the tailbone in this tunnel. Nerves branch off from
the spinal cord between each of the bones of the spine. Spinal
cord trauma occurs when that protection is damaged.
The spinal
cord is the part of the nervous system that runs down from
the brain through a canal in the spine. It sends signals between
the peripheral nerves in the body and the brain. Signals from
sensations such as pain are sent up the peripheral nerves
from organs such as the skin. Commands to move the body are
known as motor impulses. These impulses begin in the brain
and travel down the spinal cord. They then travel through
the peripheral nerves into tissues, such as muscle, to produce
movement.
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