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The importance of evolution
Nervous system in the human body
Nervous system in the human body
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Recommended: The importance of evolution
The human body is living proof that evolution could never in any sense take place. We are a testimony against evolution. We are an example of why it is impossible for the world to be an aftermath of complete disorder. How? Well for the next few minutes I`m going to tell you about an important feature of our incredible, God given, bodies. This feature that I am referring to would be the nervous system.
The nervous system is composed of two main organs, the brain and the spinal cord. Even though it has only two organs, the effects run all throughout your body from your head to your toes. This system, which is very useful in protecting us, can be attacked by multiple diseases which could shut down the hole system. Two of these diseases I will discuss in a moment.
Ladies and gentlemen, boys and girls may I introduce to you the human brain! Weighing about three pounds, it is composed of neurons that are connected to one another by vast networks of association neurons that all link to each other. Did you know that the adult brain holds 100 billion neurons? That’s right 100 billion neurons in this three pound brain! I bet you didn’t know that to manufacture all the ATP needed, your brain needs a constant supply of oxygen and glucose. The brain takes up 20% of all your body`s blood supply to receive this oxygen and glucose! After all this, I hope you can see just how amazing the brain truly is.
The brain has many interesting features about it. On the exterior part of the brain are gyri, the mountains, and sulci, the valleys. There is also a cerebrum and a cerebellum. The cerebrum is the biggest part of the brain and completes the more complex brain functions. The cerebellum controls the i...
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...ce the tremor and rigidness you may have, and it will speed you up.
Because of Parkinson`s disease, your lifestyle will change slightly. You will be forced to eat food that has lots of fiber in it and you must drink lots of water to reduce constipation. You will also want to keep walking so that you can keep your muscles strong, but you must walk carefully so that you don’t hurt yourself. The body as a whole is amazing, and when you study just one aspect, it floors you to think that God would care so much about us, to put all His power and creativity into making us. Looking at even just a brief overview of one part of your body proves that there is no way that we could be made out of an explosion. We needed and still need an intelligent God to form us and keep us alive.
There are 4 main parts of the brain. Each part of the brain is responsible for different systems in our body.
The braine has three layers into exterior of the entire brain.1-meninges, 2-dura mater and 3-arachnoid layer and the pia mater.
The cerebrum is one of the parts of the brain that provides equilibrium when it comes to motor skills and plays a petit role in our concentration and language it also normalize our responses to fear and pleasure, with its appearance as an attached part at the bottom of the brain the cerebrum receives inputs from various parts of the brain and the spinal cord. (Pinel, 2009).
Kandel, E. R., J. H. Schwarz, and T. M. Jessel. Principles of Neural Science. 3rd ed. Elsevier. New York: 1991.
The brain, like the rest of the nervous system, is composed by and large of neuralgia (glial cells), nerve cells (neurons), that are immersed in a constant flow of cerebrospinal fluid. The glial cells far outnumber the neurons, but have no axons or synapses, and therefore do not play a part in the electrical activity of the brain. They are simpler looking, much smaller, and have lower metabolic rates than neurons.
The brain has many different parts to it which help one function through daily life; parts such as the cerebrum which controls voluntary movement and regulates functions such as thinking, speaking and the ability to recall information. The cerebellum controls the balance and coordination and finally the brain stem, which consists of the medulla oblongata and the spinal cord which controls all involuntary functions such as breathing, heart rate and blood pressure. The brain stem is also able to carry out these actions even when someone is asleep. To fully understand how crucial the brain is to survival one must understand the functions of the brain stem.
The introduction to the article was interesting, “What has billions of individual pieces, trillions of connections, weights about 1.4 kilograms, and works on electrochemical energy? If you guessed a minicomputer you’re wrong. If you guessed the human brain, you’re correct!” I did not know the brain had quite this many connections. After reading our chapter I really started to grasp the complexity of the human brain and the amount of energy it expends. I felt that the article lacked facts like these further in. There was very little empirical numbers offered by the author Eric Chudler.
These electrical signals arise from ion fluxes produced by nerve cell membranes that are selectively permeable to different ions. Neurons and glia (cells that support neurons) are specialized cells for electrical signaling over long distances. Understanding neuronal structure is important for understanding neuronal function. The number of synaptic inputs received by each nerve cell in our (human) nervous system varies from 1-100,000! This wide range reflects the fundamental purpose of nerve cells, to integrate information from other neurons.
This paper involves how the brain and neurons works. The target is to display the brain and neurons behavior by sending signals. The nervous system that sends it like a text message. This becomes clear on how we exam in the brain. The techniques show how the brain create in order for the nerves about 100 billion cells. Neurons in the brain may be the only fractions of an inch in length. How powerful the brain could be while controlling everything around in. When it’s sending it signals to different places, and the neurons have three types: afferent neurons, efferent neurons, and the interneurons. In humans we see the old part of emotions which we create memories plus our brain controls heart beating, and breathing. The cortex helps us do outside of the brain touch, feel, smell, and see. It’s also our human thinking cap which we plan our day or when we have to do something that particular day. Our neurons are like pin head. It’s important that we know how our brain and neurons play a big part in our body. There the one’s that control our motions, the way we see things. Each neuron has a job to communicate with other neurons by the brain working network among each cell. Neurons are almost like a forest where they sending chemical signals. Neurons link up but they don’t actually touch each other. The synapses separates there branches. They released 50 different neurons.
The cerebrum is located at the anterior-most part of the brain and is responsible for the combination of complex sensory and neural functions, as well as the initiation and coordination of voluntary activity in the body. It is the largest brain structure in humans and makes up two-thirds of the total mass of the brain (“Cerebrum Anatomy”, 2015). Its surface, a covering made up of grey matter usually 2-4mm thick, is called the cerebral cortex and is mainly made up of the cell bodies of neurons. The cerebral cortex is responsible for integrating sensory impulses, directing motor activity, and controlling higher intellectual functions. It is also responsible for the state of consciousness, which still remains a mystery to neurologists and the rest of the science community (Swenson, 2007).
It is the most important part of the body, because without a brain, none of us would be alive. In the brain, there are the cerebrum, the cerebellum, and the brain stem. The cerebrum holds memories, controls movement, and does problem solving and thinking. It is the biggest part of your brain. The cerebellum is underneath the cerebrum and controls coordination and balance.
Biology The brain consists of both neurons and glia cells. The neurons, which are cells housed in a cell body called a Soma, have branches which extend from them, referred to as dendrites. From these dendrites extend axons which send and receive impulses, ending at junction points called synapses. It is at these synapse points that the transfer of information takes place. At the heart of neuroplasticity is the idea of synaptic pruning.
The area at the front of the brain is the largest. Most of it is known as the cerebrum. It controls all of the movements that you have to think about, thought and memory.
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 nervous system’s main function is to coordinate all of the activities in the body. The main organs are the cerebellum, which controls and coordinates movement. The cerebrum, is the center for conscious thought, learning, and memory. The last main organ is the brain stem. The brain stem keeps the automatic systems in your body working. Problems of the nervous system include, epilepsy, Alzheimer’s, and multiple sclerosis. You can care for your nervous system by wearing a seatbelt, wearing a helmet, and by not using drugs or alcohol. Something very confusing about the nervous system is that the left side of human brain controls the right side of the body and the right side of the brain controls the left side of the body!