The health
of the spinal column and the nerves that
flow through it are central to the Chiropractic
philosophy. Doctors of Chiropractic are specialists
in evaluating the causative factors in the
bio-mechanical and structural derangements
of the spine that affect the nervous system,
and in treating these derangements to restore
and maintain health. Optimum health, we believe,
can only be achieved when this relationship
between the spinal column and the nervous
system is intact and allowed to function
unimpaired.
The nervous
system consists of the brain, spinal cord and
nerves. Nerve fibers relay impulses through
this system to virtually every cell, tissue
and organ of the body, controlling all bodily
functions both voluntary and involuntary. The
brain coordinates and controls the body’s
activities by sending impulses down the spinal
cord (slightly thicker than a pencil) and out
the 31 pairs of spinal nerve roots. These spinal
nerves roots emerge from the spinal column
through small openings called the intervertebral
foramen, which are located on each side of
each vertebrae. Spinal nerves roots are collectively
made up of thousands of nerve fibers less than
1/100th the diameter of a human hair. To help
the brain know everything in the body is functioning
properly, a feedback loop sends information
from the tissues back to the brain in a system
of checks and balances.
The spinal
cord, the pathway for almost all nerve impulses
transmitted to and from the brain, is protected
within 24 movable bones called vertebrae, as
well as the lowest bones in the spinal column
called the sacrum and the coccyx.
Several components
make the back a strong, yet flexible structure.
First, each vertebrae has two bony projections
called facets, which form a hinge with the
facets of the adjoining vertebrae. A thin,
soft intervertebral disc lies between two vertebrae.
The intervertebral discs consist of a tough
outer layer of cartilage and an elastic tissue,
both surrounding a soft, gelatin-like material
known as the nucleus. This soft, pulpy filling
enables the nucleus of the disc to act as a
shock absorber.
The combination
of the vertebrae and the discs provide flexibility
in the spine. The spine’s support comes
from the ligaments, tendons and muscles that
surround and attach directly to the spine.
The back is also supported by muscles in the
abdomen, hips, buttocks and legs.
The unique
clinical concern in Chiropractic is the unobstructed
transmission of the spinal nerve impulses as
they exit the spine. Misalignment of the vertebrae
can cause the exiting nerve to become stretched,
impinged, entrapped, compressed, pinched or
otherwise irritated. Since it is the purpose
of the nervous system to coordinate the functions
of the entire body, any obstruction, no matter
how slight, can disrupt a delicate balance.
This can predispose the body to disease processes
which might not have occurred had the nerve
transmission not been altered. Therefore, it
can be said that the unobstructed transmission
of nerve impulses is of primary concern to
the Doctor of Chiropractic.