Determine the Causal factors of nervous system

Although, the brain and spinal cord are surrounded by tough membranes, enclosed in the bones of the skull and spinal vertebrae, and chemically isolated by the so-called blood-brain barrier, they are very susceptible if compromised. An individual's neurons, the building blocks of the nervous system, and the neural networks into which they form, are susceptible to electrochemical and structural disruption. While neuro-regeneration may occur in the peripheral nervous system, it is thought to be rare in the brain and spinal cord and therefore results in different form of neural diseases. The genetic and congenital abnormalities, infections, malnutrition, brain injury, spinal cord injury and nerve injury are some of the very important contributory factors for the development of nervous system diseases.