Comparison of the physiology of CNS and other Body Parts Essay - 1

Comparison of the physiology of CNS and other Body Parts - Essay Example During the diagnosis and the treatment of these conditions, medical pathologists will point out the microscopic as well as the gross changes in the appearance of tissues and cells; they check the biochemical changes that are evident in different areas, including body fluids like urine and blood. The Central Nervous System (CNS) is made up of the spinal cord, the brain, sensory organs, as well as the rest of the nerves that link these organs with other parts of the body (Rask, 1999). The CNS has certain characteristics that make its pathological processes different from the rest of the body. Most important, the organ is located in the spinal column and a bony skull, which makes it difficult to expand like many other organs in the body. In addition, the fact that the brain is contained in cerebrospinal fluid (CSF) and lacks the typical lymphatic system significantly limits its immunologic capability. This structural uniqueness, also, means that the manner in which CNS responds to heali ng is different from the rest of the body. Some of the keys characteristics of CNS that makes it different from the rest of the body organisms include the non-regenerative ability of the neuron which is its functional unit; the complexity of function and structure; the concept of blood-brain barrier; and Glial framework instead of fibroblastic (Seiffert et al., 2004). The brain is made up of millions of neurons, which are classified as either motor, sensory or autonomic (McCorry, 2007). The pathological processes in different neurons differ depending on their neuronal interconnections, differences in morphology, electrical and metabolic activities and neurotransmitter type, among many others. These differences cause selective exposure of some neurons to pathological problems such as neurodegenerative and hypoxia diseases.