The Nervous System Is The Communication System Of Your Body

Your nervous system is made up of vital nerves which extend throughout your body and brain and vary noticeably in diameter.

Men do not die, they kill themselves. - Seneca, Roman Philosopher

Spinal Nerves Control Our Actions

The spinal nerves pass through openings in the vertebral arches and branch out to serve various parts of the body. There are 31 pairs of these nerves: 8 cervical, 12 thoracic, five lumbar, five sacral and one coccygeal. Roots of the sensory nerves, which convey feeling, are attached to the back or dorsal side of the spinal cord. Roots of the corresponding motor nerves, controlling action, are attached to the front or ventral side. Each pair controls a specific part of the body. Example: if you stub your toe against a piece of furniture, the branch of the sensory nerve to that leg and foot flashes a pain signal to the central control in the spinal cord, and the matching motor nerve immediately transmits the order to pull back your foot. This is done so swiftly that your reaction seems instantaneous.

Except for those controlled by the 12 cranial (brain) nerves, automatic or reflex actions are controlled by the spinal cord. For example, we see in our brain via the cranial optic nerve, but certain eye muscles are controlled from the spinal cord, and we cry by order of — a spinal nerve that controls the lachrymal gland. Conscious actions naturally originate in the brain, but when these become reflex, they are usually transferred to the control center of the spinal cord.

In computer terminology, the brain programs a course of action and when it becomes habit it becomes part of the database of the spinal cord. When you learn to drive a car, for example, at first you must consciously think out every move, but with practice, it becomes automatic. Experienced drivers automatically calculate the speed of their own and other cars on the road, then decide how much acceleration will be required to pass safely. If they had to stop and figure this out consciously, they would never pass another car; but it is done in a split-second by their spinal nerve reflexes. The same sort of thing happens in emergencies and in countless daily actions (such as walking, sitting, eating, talking, etc.)

It is interesting and amazing to note that, according to scientists, the human brain has a storage capacity of about 1,000 years.

It is interesting and amazing to note that, according to scientists, the human brain has a storage capacity of about 1,000 years.

The Autonomic Nervous System Your Spinal Database Computer

Here are the two divisions: the Craniosacral or Parasympathetic, and the Thoracolumbar or Sympathetic.

Lacrimal gland

Parotid gland

Suprarenal gland Small intestine

Radial muscles of eye

Lacrimal gland

Mucous membrane of nos*

Submaxillary gland Sublingual gland

Mucous membrane of mouth

Parotid gland

— Visceral blood vessel Celiac ganglion liver

Suprarenal gland Small intestine

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