The processes of communication between distinct tissues and organs Among various types of organ systems, the nervous system is one of the most important one in human body. It is responsible for producing, controlling and guiding our thoughts and responses to the world around us according to James W. Pennebaker (2012). During embryological development, the cells that form nervous system are incredibly specialised and work complexly than the cells that form skin or other body parts. Neurosecretory cells are one of the examples of specialised nervous system cells that produce neurosecretions. Neurosecretions are hormones which carry information from sensor cells to target cells and they can be released directly into the bloodstream according to Rene Fester Kratz, Donna Rae Siegfried (2010). The nervous system consists of two main parts: central nervous system (CNS) and peripheral nervous system (PNS) where CNS consists of the brain and spinal cord whereas PNS consists of ganglia and nerves which connect CNS to different parts of the body. The main function of the nervous system is to coordinate the voluntary and involuntary actions of the human body and transmit signals between different parts of the body. The components of the CNS are protected by three layers of connective tissue called the meninges which are: the outer dura mater, the arachnoid membrane and the inner pia mater. Within the CNS, there is a system of hollow cavities called ventricles which are filled with cerebrospinal fluid. This acts as cushion and protects the components of CNS and also assists in the circulation of nutrients to the brain. Source: http://smallcollation.blogspot.co.uk/2013/05/brian.html The peripheral nervous system is divided into ... ... middle of paper ... ...nna Rae Siegfried . (2010). What's the Basic Structure of Nerves?. Available: http://www.dummies.com/how-to/content/whats-the-basic-structure-of-nerves.html. Last accessed 15 Dec 2013. 4. Antranik. (2012). Neurons in the Nervous System. Available: http://antranik.org/neurons-in-the-nervous-system/. Last accessed 15 Dec 2013. 5. The Human Nervous System. Available: http://www.biologymad.com/nervoussystem/nervoussystemintro.htm. Last accessed 15 Dec 2013. 6. Ellen Bowness et. al (2009). The Revision Guide. Cambridge: Macmillan. p76-80. 7. Chen Y, Stevens B, Chang J, Milbrandt J, Barres BA, Hell JW. NS21:re-defined and Modified Supplement B27 for Neuronal Cultures. J Neurosci Methods, 171 (2) 239-0247, 2008. 8. J Neurosurg. (2003). Effect of Neuregen nutrient medium on survival of cortical neurons after aspiration lesion in rats.. JNS. 98 (6), p1291-8.
Meninges are the protective coverings, which enclose the braine and spinal cord. Dura mater remain near the base of the braine. Arachnoid layer, the middle layer and pia mater, the inner layer, are located to cover the braine.
...areas, and creation of gitter cells (Gehrmann et al., 1995). Moreover, considering the importance of microglial, without microglial cells, the CNS will not survive (mortality) from external environment substance and pathogens. Thirdly, microglial cells are also responsible for homeostasis, negative and positive feedback loop, in CNS (Aloisi, 2001). Microglia is known for achieving complex communication via triggering signals molecules with other astrocytes, neural tissues, T lymphocytes and hematopoietic stem cells (Aloisi, 2001).
19. The nucleus of the neuron and the biochemical structures needed for cell survival are contained in
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 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.
The Central NS is broken down by two parts the brain and the spinal cord. The brain is protected by the scull and has a mushroom like shape. The brain has four main parts: the brain stem, cerebrum, cerebellum, and the diencephalon. The brain I the main organ
Hypothetically speaking, if patients asked their neurologists to explain what the nervous system is, how would typical neurologists respond to such a question? For the most part, patients ' question on what is the nervous system maybe a simple question for neurologists. In this instance, neurologists possibly explain to patients that the nervous System serves as a communication network that operates and coordinates the body 's activities. Operating and coordinating the body 's activities includes the nervous system to monitor thoughts, learning processes, body temperature, and altering the heart rate-- To name a few of the nervous system 's responsibilities. During the topic of discussion on the nervous system, patients asked their neurologists
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 sends information to the brain to be analyzed.
The myelin sheath is a fatty substance that surrounds the axons of the nerves and provides protection. It allows messages to be sent rapidly and accurately to the axons from long distances (Serono, 2010). The axons are the part of the nervous system that allows electrical transmission of signals throughout the brain and spinal cord. Without these electrical transmissions, the body would not be able to function properly (Serono, 2010).
You’re finally home from a long day of work and feel a rumbling in your stomach. The aching emptiness insists on food, so you begin the task of preparing a dinner. Upon doing such, while lighting the stove, your hand happens to graze the blue flames. In the blink of an eye your brain is screaming “OUCH! NO! IT’S HOT!” Receiving only slight burns, your body has set off its personal alarm system, keeping you out of any major danger. Amazing how the body can respond in such a productive, lightning fast way to protect you, isn’t it? Give a big thanks to your Somatic Nervous System controlling your five somatic senses; taste, sight, smell, hearing, and touch. Within this report, however, we shall focus on just one of these senses; touch. We will unlock just how it works and the parts of the body that play a key role in the game of feeling. Diseases, conditions, and circumstances of the somatic touch sense will also be examined not failing to cover the dysfunction and issues that may take place in the system.
Both NT-3 and BDNF equally promote neurite growth whereas, NT-3 is also involved promoting synapse formation in vitro. I intend to study the SGN regenerative effect of intracochlear perfusion of NT-3 on noise exposed mouse. Similarly, CNTF is found in the organ of corti and it was found that CNTF expression goes down in deafened rats at about the same time as SGNs start to die. It was show in retinal ganglion cells that CNTF can promote regeneration. This shows that apart from neuronal survival CNTF could also promote
Within the human anatomy, an intricate and complex network of specialised nerve fibres and neurons works in collaboration with the central nervous system and peripheral system, designed to carry out the various actions humans perform every day. The nervous system is also known as the master control unit of the human body, as it operates other major functions such as the circulatory and respiratory systems (Jakab, 2006). It is composed of the central nervous system (CNS) and the peripheral nervous system (PNS). The neurons established within the various sections of the nervous system, is structured with three main parts: a dendrite which is a cluster of branches that operates by receiving information from the receptor and neurons and transferring nerve impulses to the cell body; furthermore, a cell body is composed of a nucleus, that works to provide energy and nutrients for the neuron; lastly is an axon, electrically conducted by the myelin sheath, the axon is a pathway nerve impulses pass through from the cell body. In addition, this is the process in which nerve impulses travel by to be able to access the rest of the system (Core Science, 2010). The correct function of the nervous system is vital to the daily survival of an individual, as it obtains a significant role in the control and co-ordination of the human body. Furthermore, if a situation occurs where the nervous system dysfunctions or develops a disease (such as multiple sclerosis), it would in that case threaten the current status of one’s health and cause havoc in the system.
Since the brain and the nervous systems are in need of each other to perform their functions it is important to look at the brain and all of it 's features. The brain is the control center that process the majority of all the bodies functions. The spinal cord is responsible for certain simple muscle reflexes but the brain process both conscious and unconscious.
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 brain and spinal cord make up the central nervous system. The brain doesn't just control your organs, but also can think and remember. That part of the brain is called the mind.
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!