The Human Nervous System Essay

3129 words - 13 pages

The nervous system is composed of all nerve tissue in the body. This organ system forms a communication and coordination network between all parts of the body. It plays a major role in everyday activities such as breathing, walking even blinking. It is made up of nerve tissues to receive and transmit stimuli to nervous centers and initiate response. Neurons are nerve cells that transmit signals from one location of the body to another. With damage to the nervous system the body would not be able to function properly. The body has to be well taken care of in order to insure proper regulation. The two anatomical divisions that work hand in hand to help regulate the nervous system are the central and peripheral nervous system. According to the Campbell’s seventh edition biology book the nervous system is the most intricately organized data processing system on earth. It is a complex collection of nerves and specialized cells.
The three interconnected functions of the nervous system are sensory input, integration and motor output. Sensory input is the conduction of signals from sensory receptors to the central nervous system. Integration is the analysis and interpretation of the sensory signal and the formulation of appropriate responses. The motor output function is the conduction of signals from the integration centers to effector cells, which performs the body’s responses.
The central nervous system (CNS) consists of the brain and the spinal cord. The brain and the spinal cord serves as the collection section of the nerve impulses. With damage to the peripheral nervous system the central nervous wouldn’t be able to interpret the stimuli’s because they wouldn’t be able to receive them. This system is considered to be the main processing center of the body. The CNS is surrounded by membranes called meninges. Meninges are layers of connective tissue. They help protect this particular anatomical division.
It is said that the brain is about two percent of body weight and it uses twenty percent of the body’s oxygen. According to the brain sourcebook the brain is the fattest organ in the body. It is made up of 60 percent fat. The brain is divided into three parts. These three parts include the cerebrum, cerebellum, and the brain stem.
Although the central nervous system is considered to be the main processing center the brain is the master control center. It has sensory centers that integrate data from sense organs. To help keep the brain protected it is covered by the scalp, cerebrum or otherwise known as the skull and vertebrae. The brain is also protected by three layers of meninges. The first layer is Dura mater. Dura mater is the outer layer. This layer consists of connective tissues, blood vessels and nerves. The next layer is the middle layer. The middle layer is called the arachnoid layer. This layer is elastic and web like. The inner layer that covers the brain is called pia mater. Pia mater contains nerves and blood...

Find Another Essay On The Human Nervous System

How the Nervous System Works Essay

729 words - 3 pages Did you know that there are more nerve cells in the human brain than there are stars in the Milky Way? The Nervous System is one of the most important systems in the human body. Without the Nervous System, no other systems would be able to function in the body. Our Nervous System helps us to fell pain, move, and it also tells the other systems in the body what to do. The Nervous System is the network of nerve cells and fibers that transmits

Cocaine and the Nervous System Essay

1117 words - 4 pages Cocaine and the Nervous System All drugs have a negative effect on the nervous system, but few can match the dramatic impact of cocaine. Cocaine is one of the most potent, addictive, and unpredictable recreational drugs, and thus can cause the most profound and irreversible damage to the nervous system. The high risk associated with cocaine remains the same regardless of whether the drug is snorted, smoked, or injected into the user¡¯s

Anatomy and Physiology of the Nervous System

815 words - 3 pages body survival has control over circulation of blood by regulating the heart beat and arterial blood pressure. The last part of the nervous system would be the spinal cord which extends from the base of the medulla oblongata to the junction between the first and second lumbar vertebrate. Its functions are to conduct sensory impulses from the rest of the body to the brain and send impulses from the brain to the body. (fleming-Mcphillips, 2011) The nervous system plays a major row in human bodies as you can see. I can conclude that without a nervous system we would be in dangering our selves all the time because we wouldnt be able to feel thing.

The nervous system and its bodily functions

1988 words - 8 pages from the head to lessen pressure or by lowering high blood pressure. The fact that the body's automatic functions can be affected by the mind greatly contributes to the understanding of the autonomic nervous system. In conclusion, the nervous system is an important part of science because understanding it can help save lives. Millions were saved from heart attacks, strokes, etc. from treating the nervous system. Understanding about the nervous system is also necessary for psychologists, physicians, and neurologists. Future experiments of the nervous system can benefit the human race by producing cures for presently incurable diseases.

The Nervous System and Sexual Function

1668 words - 7 pages The nervous system is divided into three components: the central nervous system, which encompasses the brain, brain stem, and the spinal cord, the peripheral nervous system, which includes the sensory receptors and effector muscles and organs in the body, and the autonomic nervous system which is part of both the peripheral and central nervous system and controls visceral and largely unconscious functions (Barker & Barasi, 2005). The sexual

Anatomy and Physiology of the Nervous System

2208 words - 9 pages The body is a physical structure composed of the skeletal, muscular, endocrine, digestive, circulatory, respiratory, excretory, and the one I am representing, nervous, systems, yet the most priceless and vital one that surely should not be laid off is the nervous system. The nervous system consists of two sections. The first is the central nervous system (CNS). The CNS, which coordinates the activities of the entire nervous system, is composed

Disorders of the Nervous System: Huntington’s disease

1022 words - 5 pages Disorders of the Nervous System: Huntington’s disease Huntington’s disease destroys the organs that carry the functions of the central nervous system. Kalat (2013) states, “Huntington disease (also known as Huntington disease or Huntington’s Chorea) is a severe neurological disorder that strikes about 1 person in 10,000 in the United States” (A.B. Young, 1995, p. 258).Individual’s develop the symptoms in their middle age, but even if it is a

Nitric Oxide (NO) and the Nervous System

1922 words - 8 pages Nitric Oxide (NO) and the Nervous System Better known as an environmental hazard, nitric oxide (NO) is produced in combustion engines and contributes to smog and acid rain and has been implicated in the catalytic destruction of the ozone layer (Lancaster;1992). Though NO is the bad-boy of the environment, it’s roles in the body are extremely diverse and in some instances can be deleterious or beneficial depending on the circumstances. NO

Nervous System and The Endocrine System, Questions and Answers

1703 words - 7 pages 1. Nervous System to Endocrine System The Endocrine System carries hormones into the blood and other body fluids. These chemicals are most important for our growth, responses to stress, metabolism and water and mineral balance. The hormones that the endocrine system distribute throughout the body provide feedback to the brain for neural processing. The reproductive hormones can somehow affect the nervous system development. The Hypothalamus

Growth Impairment of the Fetal Nervous System by Nicotinic Stimulation

1203 words - 5 pages Growth Impairment of the Fetal Nervous System by Nicotinic Stimulation The resources on this particular topic were minute. In fact, only two articles were obtained Therefore due to the lack of compiling information, all of the following text should be attributed to the sources listed The maternal utilization of tobacco substances during pregnancy gives rise to growth retardation and an array of neurobehavior defects in the offspring

Nerve Regeneration in the Peripheral Nervous System (PNS) of mammals

643 words - 3 pages INTRODUCTION Nerve Regeneration in the Peripheral Nervous System (PNS) of mammals PNS neurons in mammals have a capacity to regenerate and re innervate the target. However functional recovery varies, depending on the type and location of injury, age of the neurons and other factors, but the recovery is never complete. An overview of the regenerative response Following an injury, in the distal nerve stump a series of degenerative

Similar Essays

The Nervous System Of The Human Body

785 words - 3 pages The Nervous System of the Human Body The nervous system of the human body is responsible for sending, receiving and processing nerve impulses. It controls the actions and sensations of all the parts of the human body as well as your thoughts, emotions and memories. The nervous system is a "speedy electrochemical communication system of all the nerve cells of the peripheral and central nervous system". The most basic and important part in

Human Nervous System Essay

1182 words - 5 pages In the central nervous system, the brain and the spinal cord are the two main parts. The brain and spinal cord are protected by bone. The skull encloses the brain, and the vertebrae of the spinal column surround the spinal cord. The brain and spinal cord are also covered and protected by 3 tough membranes called menings. The cerebrospinal fluid cushions the brain and spinal column. The brain contains four ventricles filled with the fluid; the

The Nervous System Essay

998 words - 4 pages The Nervous System The human nervous system is composed of many different parts and performs many different functions. It is said to be the “body’s electrical wiring.” (Zimmerman) The nervous system itself is capable of collecting information, processing it, and then responding to the collected information where it then sends it to the appropriate part of the body to perform bodily functions. (Miller and Levine) The nervous system, as hinted in

The Nervous System Essay

889 words - 4 pages The Autonomic Nervous syetem (ANS) controls involuntary bobily functions, for example the beating heart. The autonomic nervous syetem is coposed of the numerous nerves which projects from the brain and the spinal cord to the smoothmuscles of various babily organs.There are two major parts to the autonomic syetem which often works in oppsition to each other, but not always. One is the sympathetic system. The sympathetic nervous system is often