Introduction: The first part of this report will be looking at differentiating parts of the nervous system. Second part will look at different types of neurone and the functions of these neurones. Thirdly the nerve reflex pathway will be describe and illustrated. Lastly process of the nerve impulses and transmission will be explained.
Nervous system: The nervous system helps the body to coordinate involuntary and voluntary actions. The system also helps to transmit signals between parts of the body, for example if a person was to pick up an object the brain send signals down the nerves to enable grip and strength to pick the object up. There is much more to this action which will be discussed further on in this report. The nervous system also has a complex network of specialised cells which have specific functions. The cells throughout the nervous system communicate through electrochemical waves.
There are two major division in the nervous system they are the central nervous system (CNS) and peripheral nervous system (PNS). Whilst the CNS involves the brain where information is received and processes sensory information. The CNS initiates the responses, stores memories, generates thoughts and emotions. The CNS also involves the spinal cord, which conducts signals to and from the brain and also controls reflex activates. For example if a hand is place on something hot the CNS ensures the hand is moved away from the danger so damage is limited. This reflex occurs without any thought from the person. Whilst the PNS main function is to connect the limbs and organs to the CNS. The PNS is split into two divisions, somatic and autonomic. The somatic system controls voluntary muscle movement, such as flexing the arm. Whilst the autonom...
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...f the autonomic nervous system, which included the sympathetic and parasympathetic system. The next part of the report looked at the three major types of nerve cell unipolar, multipolar and bipolar cells. Part of neuron known as the myelin sheath was discussed and how it affects a person if the myelin sheath is damaged. The report looked at specific disease known as multiple sclerosis and the affects that this disease has on sufferers. The next part investigated the reflex pathway and how it’s essential in protecting the body. The pathway was describe by using the knee jerk technique and the pathway it takes with the neurons involved in that pathway. The last part of the report looked at the synapse and how it transmits signals to other neurons. During this neurotransmitters were discussed and also how local anaesthetic blocks pain when tooth extraction is involved.
Naomi Nye was born to a German-American mother and a Palestinian-American father. However, she normally writes from her Palestinian-Arab perspective. In several of her poems within The Heath Anthology—“Ducks,” “My Father and the Figtree,” and “Where the Soft Air Lives”—Naomi Nye reminisces about her Muslim heritage and childhood as it correlates to her present identity. In addition, she incorporates the effect of the Palestinian-Israeli conflict on herself and on Arab culture in her work. Ultimately, Naomi Nye’s poetic work should remain in The Heath Anthology as her style demonstrates how historical events and a deep-rooted heritage can enrich a sense of identity and culture.
...rvous system to the immunity supporting parasympathetic nervous system. The parasympathetic nervous system is the “relaxation” part of our autonomic nervous system, which controls all of our body’s involuntary functions.
Let’s say that there is a mechanical sense. If someone touched your hand, your somatosensory system will detect various stimuli by your skin’s sensory receptors. The sensory information is then conveyed to the central nervous system by afferent neurons. The neuron’s dendrites will pass that information to the cell body, and on to its axon. From there it is passed onto the spinal cord or the brainstem. The neuron's ascending axons will cross to the opposite side either in the spinal cord or in the brainstem. The axons then terminates in the thalamus, and on into the Brodmann Area of the parietal lobe of the brain to process.
Firstly, there is various of sensing activities as in seeing and hearing as in a sense of understanding of what is seen and heard. Secondly the sense of feeling in numerous parts of the body from the head to the toes. The ability to recall past events, the sophisticated emotions and the thinking process. The cerebellum acts as a physiological microcomputer which intercepts various sensory and motor nerves to smooth out what would otherwise be jerky muscle motions. The medulla controls the elementary functions responsible for life, such as breathing, cardiac rate and kidney functions. The medulla contains numerous of timing mechanisms as well as other interconnections that control swallowing and salivations.
The ANS is part of the peripheral nervous system, being split into sympathetic pathways, which prepare the body for action and parasympathetic pathways which prepare the body for rest. This regulates the functions of the body and some of the muscles automatically.
A bunch of nerves put together is called the Nervous system. The Nervous system helps with body coordination and provides sensory information about external problems. The nervous system controls the brain, spinal cord, sense organs, etc. Without our nervous system, we would not be able to function, since
The brain is part of the central nervous system, which consists of neurons and glia. Neurons which are the excitable nerve cells of the nervous system that conduct electrical impulses, or signals, that serve as communication between the brain, sensory receptors, muscles, and spinal cord. In order to achieve rapid communication over a long distance, neurons have developed a special ability for sending electrical signals, called action potentials, along axons. The way in which the cell body of a neuron communicates with its own terminals via the axon is called conduction. In order for conduction to occur, an action potential which is an electrical signal that occurs in a neuron due to ions moving across the neuronal membrane which results in depolarization of a neuron, is to be generated near the cell body area of the axon. Wh...
When a message comes to the brain from body parts such as the hand, the brain dictates the body on how to respond such as instructing muscles in the hand to pull away from a hot stove. The nerves in one’s skin send a message of pain to the brain. In response, the brain sends a message back dictating the muscles in one’s hand to pull away from the source of pain. Sensory neurons are nerve cells that carry signals from outside of the body to the central nervous system. Neurons form nerve fibers that transmit impulses throughout the body. Neurons consists of three basic parts: the cell body, axon, and dendrites. The axon carries the nerve impulse along the cell. Sensory and motor neurons are insulated by a layer of myelin sheath, the myelin helps
The next part of this paper will consist of information describing the organs and the normal functions involved in five of the physiological systems in the human body. It will also include one illness...
The human nervous system is divided into two parts, the central nervous system and the peripheral nervous system. The central nervous system, CNS, is just the brain and spinal cord. The peripheral nervous system, PNS, includes the nerves and neurons that extend outwards from the CNS, to transmit information to your limbs and organs, for example. Communication between your cells is extremely important, neurons are the messengers that relay information to and from your brain. Nerve cells generate electrical signals to transmit information.
Our nervous system interacts with every other system in your body. The endocrine system works with our brain and central nervous system, to control the creation of specific hormones and enzymes. The digestive and excretory systems work with the nervous system in a conscious and unconscious ways. We can't tell our stomach where the food goes after we ingested it. The body is programed to function voluntarily and
Nervous system is one of the major organ systems that is responsible for the coordination of biological activities inside the body through cells called neurons. It is composed of the brain and spinal cord which are surrounded by protective layers of bone and membrane tissues called meninges. There are two major divisions in the nervous system; first one is the central nervous system (CNS) and the other being the peripheral nervous system (PNS). The CNS is composed of the brain, spinal cord, and retina while the PNS includes the sensory neurons, ganglia, and connecting neurons. The nervous system applies control using nerves; almost as if sending a message by a telephone. The nervous system is fast due to its electrical nature. The nerve cells in this system are connected with each other in a complex manner where the neural pathways would be possible. Neural
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!
This arc belongs to the autonomic nervous system (ANS). The ANS is the part of the peripheral nervous system that is responsible for controlling involuntary body functions. This system helps us maintain a steady heartbeat while we are sleeping, and anything else that is necessary to keep us alive during low levels of consciousness. This system affects the body functions that are not consciously managed, such as breathing, digestion, heart rate, pupillary dilation, and urination. However, there are some ANS actions that we are able to control with our mind to a certain extent, such as swallowing.