Nervous system

  • by

The nervous system is the electrical cable of the human body. Through it circulates all the orders, coming from the brain, thus making our body function as a perfect machine.

The nervous system is made up of bundles of fibers that start in the brain and branch into all parts of the body. Electrical signals coming from the brain and nervous system are responsible for: coordinating muscles, speech, senses, thoughts, memories or emotions.

The nervous system is composed of the following:

  • The central one which is composed of the nervous tissues of the brain and spinal cord.
  • Peripheral nervous system that has in its composition the nervous tissues of the rest of the body.
  • The autonomous one. It is also found under the name of the vegetative nervous system and is in addition to the nervous system that controls involuntary actions.

Diseases that affect the nervous system are:

  • These can be the following: meningitis, polio, encephalitis, etc.
  • Structural disorders, such as brain or spinal cord injuries, carpal tunnel syndrome, paralysis, tumors, etc.
  • Vascular disorders. These can be the following: strokes, bleeding, ischemic attacks, etc.
  • Functional ones: epilepsy, neuralgia, dizziness, headache.
  • And last but not least, degenerative diseases. These can be the following: multiple sclerosis, amyotrophic lateral sclerosis, Alzheimer’s, Parkinson’s, etc.