This website uses cookies to ensure you have the best experience. Learn more

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 the usefulness of the Nervous System is the Neuron.

The neuron is the functional unit of the Nervous System consisting of 100 billion neurons in 1 human brain alone. While they vary in size and shape, all neurons have 3 identical parts that enable them to function. The first part of a neuron, the Cell Body, contains the nucleus, mitochondria and other organelles which are all critical elements of a neurons character. Second, Dendrites, are the area of the neuron that receive information from other cells and transmit the message to the cell body, while the last element known as the Axon conducts messages away from the cell. These 3 specific areas are an important asset to the function of each neuron.
Each containing the previously listed areas of the neuron, there are three separate types of neurons occurring in the Nervous System. One being the Sensory neurons, which carry incoming messages from sensory receptors to the Central NS. Another, Motor neurons, transmit the outgoing messages from the Central NS to the body's muscles and glands. Although our nervous system has millions of sensory and motor neurons, it consists of billions of interneurons. Interneurons are found only in the Central NS where they connect neuron to neuron to provide communication throughout each cell.

Together these multiple systems help to make up one section of the Nervous System known as the Peripheral Nervous System. The Peripheral NS consists of the "sensory and motor neurons that connect the Central NS to the rest of the body". It consists of two components, the Somatic nervous system, which controls the movements of our skeletal muscles and the Automatic nervous system, which controls the glands and muscles of our internal organs. The automatic nervous system is a dual system that has influence over the heartbeat, digestion, and glandular activity. These two systems which make up the automatic NS are known as...

Find Another Essay On The Nervous System of the Human Body

Antioxidants System in The Human Body

2190 words - 9 pages Introduction Oxidative stress is essentially defined as the imbalance in the equilibrium of antioxidants systems in the human body. Oxidative damage in aerobic organisms can be caused by certain molecules known as reactive oxygen species (ROS). These reactive species are ones that cause oxidative damage in biomolecules. In order to maintain equilibrium of these substances, the human body has various endogenous antioxidants and phase 2 proteins

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

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

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.

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

How the Nervous System Works

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

1117 words - 4 pages bloodstream. In addition to the intense damage cocaine can cause to the liver, intestines, heart, and lungs, even casual use of the drug will impair the brain and cause serious damage to the central nervous system. Although cocaine use affects many components of the body, including vision and appetite, the most significant damage cause by cocaine takes place in the brain and central nervous system. Spanish explorers first observe South

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

Systems of the Human Body

1325 words - 5 pages The human body is very complex. It is like a job. You have to do a million things in one day to make it through the day. The body uses nine systems to do all of those jobs. They all have separate functions, but some work together. Each system is also made up of organs. There are many ways to care and protect the systems from the many different problems they can have. There are also many interesting facts about each system. The nervous

Similar Essays

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

The Digestive System Of The Human Body

2086 words - 8 pages The digestive system is a very important system in the human body. It is a group of organs that work together to turn food into energy and nutrients in the entire body. The food that was chewed in a humans’ mouth now passes through a long tube that is inside of the body that is known as the alimentary canal. The alimentary canal is made of the oral cavity, pharynx, esophagus, stomach, small intestines, and large intestines. Those few things are

Human Nervous System Essay

1182 words - 5 pages . There are 2 subdivisions called autonomic and somatic. The somatic nervous system consists of sensory and motor neurons. It innervates the sensory organs and skeletal muscles; it is responsible for mostly voluntary movement. Autonomic nervous system consists of motor fibers from brain and spinal cord, which control internal organs. There is no voluntary control; it controls vital functions of the body for example heartbeat, and breathing. Then it is

Human Body And The Skeletal System

2231 words - 9 pages liters of air per minute are inhaled and exhaled, and about three tenths of a liter of oxygen is transferred from the alveoli to the blood each minute, even when the person is at rest. Humans have a highly structured closed circulatory system. The major components are the lungs, the heart, and the trachea. First, the oxygen is introduced into the human body through the nose then it travels down into the pharynx and then the trachea. After the