Nervous System Function, Facts & Diseases

The nervous system is the part of human body, transmitting singles to and from different parts of the body. It’s like electrical wiring in our body conveying messages to our body to perform different actions. The nervous system consists of two main components – the central system and the peripheral system. The central system is comprised of the brain, nerves and spinal cord, while the peripheral system is made up of ganglia, sensory neurons and nerves.


When it comes to functioning, the nervous system consists of two main parts – voluntary component and involuntary component. The autonomic or involuntary nervous system regulates particular body processes such as blood pressure, work without consciousness, and the breathing. The voluntary system comprises of nerves connecting spinal cord and brain with sensory receptors and muscles in the body.

Nervous System Conditions

In this advanced world, there’re a number of procedures and tests are used to diagnose nervous system conditions. A specialized X-ray known as fluoroscopy are being used to examine moving body structures such as blood running through arteries. Other neurological exams combine CT scan, MRI, and EEG that record brain’s incessant electrical activity. Positron Emission Tomography is a procedure measuring brain activity and tissue metabolism to detect disease tissues and tumors. The most common nervous system conditions include – Epilepsy, Amyotrophic lateral sclerosis, Multiple sclerosis, Alzheimer’s disease and Stroke.


Interesting Facts

Our brain contains more nerve cells than the stars in the Milky Way. There’re around 100 billion neurons in the brain alone. The left side of our brain controls the right side of our body and vice versa.  Our nervous system can’t perform properly without sodium and potassium ions.


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