Nervous Systems The Nervous System Essay - 1395 Words

So, the sympathetic nervous system sets off a reaction and it â€Å"causes your adrenal glands to release large amounts of adrenaline† (ibid.). You may feel the sudden jolt with an accompanying â€Å"feeling of dread and terror.† It is not in your imagination! A lower level stress does this in the body too. Let’s continue. â€Å"Within seconds, the excess adrenaline can cause: 1) your heart to race, 2) your respiration to become rapid and shallow, 3) profuse sweating, 4) trembling and shaking, and 5) cold hands and feet.† (ibid.). Your sympathetic nervous system also produces muscle contractions. This is the freeze part of fight and flight. It can lead you to experience strong contractions in your chest or throat and feeling like you can t breathe. Other reactions caused by the sympathetic nervous system include excess release of stomach acid, inhibition of digestion, release of red blood cells by the spleen, release of stored-up sugar by the liver, increase in metabolic rate, and dilation of the pupils.† (ibid.). When I first read this years ago, I instantly thought migraine attack. So, you might experience an extreme flush of adrenaline and you might not. But don’t be fooled, the body prepares for each attack and this places stress on the body. On a smaller level the hypothalamic − pituitary − adrenal gland also known as the HPA axis controls the stress response. The hypothalamus, in the brain, regulates basic bodily functions like: stress, body temperature, hunger, sleep andShow MoreRelatedNervous Systems And The Nervous System1749 Words   |  7 PagesThe nervous system is made up of tissues, cells and organs which regulate the body’s responses to stimuli. The nervous system consists of the central nervous system and the peripheral nervous system. It also consists of brain, spinal chord, facial nerves, body nerves, sensory neurone and motor neurones, somatic and autonomic nervous systems, parasympathetic and sympathetic. Central nervous system- The CNS is made up of the brain and spinal chord. Peripheral nervous system- The PNS is made upRead MoreThe Nervous System And Peripheral Nervous Systems958 Words   |  4 PagesThe nervous system has three general functions: a sensory function, an interpretative function and a motor function. Sensory nerves gather information from inside the body and the outside environment. The nerves then carry the information to central nervous system (CNS). Nervous tissue consists of two main types of cells: neurons and neuroglia. Neurons also so known as nerve cells ) transmit nerve impulses that move information around the body. Central Nervous System and Peripheral Nervous SystemRead MoreNervous Systems And The Nervous System1386 Words   |  6 Pages The nervous system is a system of nerve cells and fibres that transmit electrical impulses throughout the whole body. The nervous system is made up of two systems; the central nervous system or CNS and the peripheral nervous system or PNS. The CNS is made up of the brain and the spinal cord (see Figure 1.0 below), these are protected by bone and cushioned by cerebrospinal fluid, and the PNS is the nervous around the rest of the body. The PNS consists of motor neurons, sensory neurons, somatic nervousRead MoreNervous Systems : The Nervous System1971 Words   |  8 PagesABOUT THE NERVOUS SYSTEM The nervous system is a complex bodily system responsible for controlling and coordinating numerous functions in the body. Nerves enable certain internal functions involuntarily in the body such as regulation of heart beat, digestive system break down of a meal and the brain interpreting visual signals from the eyes. There are different branches of the nervous system with different functions of each branch. The nervous system coordinates the activities of the body and enablesRead MoreNervous Systems And The Nervous System1267 Words   |  6 PagesThe nervous system is the most crucial and key part of our body. The nervous system is responsible for managing our thinking process, emotions, and body functions. The nervous system has two important parts; the central nervous system and the peripheral nervous system. The nervous system is consisted of many different and connected parts such as nerves and neurons that transmit all different kinds of signals between different parts of our bodies. Essentially, I think of it as the body’s electricalRead MoreThe Nervous System And Nervous Systems1785 Words   |  8 Pagesthings or drinking tea after it cools a bit, every action, reaction is driven by our nervous system. All the information taken in is processed and executed by electrical and chemical signals to and from nervous cells. The nervous system controls all our physiological and psychological reactions. All animals have nervous system, except for very simple ones like sponges (The Nervous System, 2015). Human’s nervous system is probably the most complex one, all of our thoughts, emotions and actions are basedRead MoreThe Nervous System1486 Words   |  6 Pages The nervous system is made up of 2 main parts - the spinal cord and the brain. These two parts combine to make the central nervous system and the sensory and motor nerves which form the peripheral nervous system. Neurons process information in the form of electrical signals, namely nerve impulses, which travel along the axon. Charged ions are not able to enter plasma membranes which make neurons have a difference in ion concentration between the inside and the outside of a neuron. This preventsRead MoreNervous Systems And The Nervous System830 Words   |  4 PagesThe nervous system functions as the communication and control system of the body through electrical and chemical signals. It responds to stimuli through gathering information, interpreting it, and providing an appropriate response. The nervous system is responsible for our thoughts, actions, and emotions (Marieb Hoen, 2013). The nervous system is also responsible for involuntary actions such as blinking (Mandal, 2010) . It is made up of the brain, spinal cord, and nerves. The nervous systemRead MoreNervous System2092 Words   |  9 PagesThe Nervous System The nervous system is the most complex part of the body, as they govern our thoughts, feelings, and bodily functions. It is an important factor in science because it can lead to new discoveries for cures or diseases. The studies of the nervous system helped lower death rates from heart disease, stroke, accidents, etc. The nervous system is a network of neurons (nerve cells) that that sends information to the brain to be analyzed. Neurons live both in and outside the central nervousRead MoreNervous Systems And The Nervous System1440 Words   |  6 Pages Nervous System The human body is one of the most complex structures known to mankind. To this day, we still do not have all the answers to how our body functions. One of the most complex structures in the human body is the nervous system, which controls the voluntary and involuntary actions, as well as send signals throughout the body. The nervous system is split up into two parts; the peripheral (PNS) and central (CNS) nervous systems. The central nervous system consists of two main parts; the