The Importance of the Human Nervous System
The paper “The Importance of the Human Nervous System” is an outstanding example of an essay on medical science. The human nervous system is separated into the central nervous system, consisting upon the peripheral nervous system, brain and the spinal cord which contains the whole nervous construction outer part of the central nervous system, mainly the nerve courses, sensory receptors and in the special part called ganglia there are little quantities of nerve cells. All over the body Ganglia are found at diverse positions (Alberts, 2008). They are the only locations of neurons outside the central nervous system.The Importance of the Human Nervous System
Information from incoming cells can be transmitted to the ganglion cells, which in turn can transmit that information to other locations. The advantage of having a nervous system is that it supplies as the chief managing structure to the human body. One of the main tasks contains the harmonization of the many body parts, the incorporation of physical actions, the investigation of inward spurs, and all brain motions, counting reminiscence and theoretical analysis. The nervous system regulates these activities by communication between various nerve cells by controlling the actions of skeletal, smooth, and cardiac muscle, it also stimulates the secretion of products from various glands of the body (Lovinger, 2008). The disadvantages of the nervous system include the effects that can be caused in the event of a disease or injury in the cells of the nervous system, especially within the brain.
This will create problems that are unique to that organ. In addition, the cells of the brain are constrained to a limited area (Bloom et al, 2007). Any neural injury or disease that destroys cells effectively results in a decreased number of neurons this is because neurons are not very good at repairing themselves.
Furthermore, the space in the skull is tightly packed with cells and cerebrospinal fluid. There is no room for the blood that might appear as the result of an injury or the fluid accumulation that might be caused by tissue infection or tumors (Evans-Martin, 2010). Any of these conditions will increase the pressure within the skull and will also increase the extent of the injury to the nervous tissue. Although the brain and the spinal cord contain several different types of cells that are morphologically unique, there is only one functional cell present, which by convention is always referred to as the neuron.The Importance of the Human Nervous System
The neuron is one of the few cells in the body that cannot reproduce. A fixed number of these cells develop in infancy, and the number never increases. The number of neurons can, however, decrease in the event of an injury or a disease (Evans-Martin, 2010). The neuron consists of a cell body that is similar to that of the typical animal cell familiar to most people.
In addition, the neuron has extensions called processes. In the typical neuron, there are two types of processes: dendrites and axons (Marieb, 2008). Usually, a neuron has many dendrites.The Importance of the Human Nervous System