Central nervous system: definition, diseases, diagram

The nervous system is the information processing center: it is from here that the various commands emanate. Where is he ? What is it made of? What happens in the event of a disruption?

What is the definition of the central nervous system?

The central nervous system is that Integration and processing center that controls voluntary or involuntary thoughts, emotions and actions. “The central nervous system controls the awarenessthe speechthe memoryand everything sensory modalities (sight, hearing, smell, taste, touch), strength, movement control, power and sensitivity“, explains Pr. Mikael Mazighi, neurologist.

Graphic: The central nervous system in pictures

Diagram of the central nervous system and peripheral nervous system © Сергей Чичерин-Adobestock / Women’s Magazine

What is the difference between central and peripheral nervous system?

We are often against them, and yet they are complementary. The peripheral nervous system enables the exchange of information between the central nervous system and sensory and muscle cells. In other words, the nerves that make it up gather sensitive and sensory information from the periphery and relay it to the central nervous system.

What role does the central nervous system play?

The central nervous system has three main functions:

  • He manages the various sensory information (heat, cold, pain, etc.) coming from the periphery
  • He coordinates muscle movements
  • He regulates the functioning of other organs

How is the central nervous system structured?

He understands the brain (Brain, cerebellum and brainstem) which controls most bodily functions such as movement, thought, emotion, language or even memory…and spinal cord, which transmits nerve signals.

What Are the Different Causes of Central Nervous System Damage?

“In particular, we find: Diseases of the vessels (stroke), tumors, infections, inflammations, hereditary diseases, epilepsy, neurodegenerative diseases (Alzheimer’s, Parkinson’s) vitamin deficiency (B1, B12, PP) as well as the poisonous (alcohol, lead, nitrous oxide etc.)says Pr Mazighi.

What are diseases of the central nervous system?

In the case of functional disorders of the central nervous system, the diseases can be:

  • Of stroke
  • Of encephalitis (brain infection)

In chronic diseases of the central nervous system, various conditions can develop: a multiple sclerosisof Neurodegenerative Diseases like Alzheimer’s disease or Parkinson’s, epilepsy and brain tumors.

Thanks to Pr. Mikael Mazighi, Neurologist at Lariboisière Hospital in Paris.

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