Nervous System

The nervous system is made up of cells called neurons which transmit chemical or electrical signals throughout the body. The major organs of the nervous system are the brain, spinal cord, and the retina, which make up the central nervous system (CNS) and the sensory neurons, ganglia and the large network of nerve cells, which are spread throughout the body and make up the peripheral nervous system (PNS).

The nervous system is commonly referred to as the control center of the body and includes the following functions:

Skeletal muscle movement
Movement of food through the digestive system
Sensing of hot, cold, pain, pressure
Taste

There are many diseases and conditions that can affect the nervous system, including:

Alzheimer Disease
Parkinson Disease
Huntington Disease
Multiple Sclerosis
Muscular Dystrophy
Brain or Spinal Tumors
Stroke
Epilepsy
Encephalitis
Head or Spinal Trauma
Meningitis

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