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.
"What Does a Neurosurgeon Do?." What Does a Neurosurgeon Do?. N.p., n.d. Web. 31 Dec. 2013. .
Alzheimer’s disease is the most common cause of dementia. The very first stages of Alzheimer’ include symptoms like confusion and using the right words while talking. As it gets on to later stages symptoms like loss of memory and mood swings start to appear (Begley et al., 2001). Any sort of stem cell treatment is not available to Alzheimer’s patients yet, as researchers are still conducting new experiments. There are multiple neurons that get damaged by Alzheimer’s, which makes the problem even more complex and a different approach needs to be followed every time a clinical trial is conducted.
Nordqvist, C. (2009, March 19). What is Dementia? What Causes Dementia? Symptoms of Dementia. Medical News Today. Retrieved June 16, 2010, from http://www.medicalnewstoday.com/articles/142214.php
The nervous system controls and organizes all parts of the body. The brain receives all the messages and tells the respective body parts to do their jobs. Neurons pass through the nervous system to receive and transfer messages in a form of an electrical impulse. In order for the brain to receive all the messages a special chemical known as neurotransmitters carries messages to the brain. There are many types of neurotransmitter such as dopamine, GABA, insulin etc. Neurotransmitters are found in between small gaps of neurons called the synapses. A neurotransmitter works by quickly moving over the synapse and joins to sites on other sides, in order to restart the electrical impulse. Later they are broken down and receive new messages. Neurotransmitters are important for our body to make responses but it can be damaged of destroyed by certain things such as drugs. There are many drugs that can affect them an example is cocaine and caffeine. There have been many effective solutions for these drugs but it is not proven to remove the effects on the body completely.
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
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
Serono, M. (2010, September 24). How does the Central Nervous System (CNS) Work?. Retrieved from http://www.epgpatientdirect.org/multiple-sclerosis/how-does-the-central-nervous-system-cns-work.cfm
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.
Almost all animals have a nervous system. Neurons bundle together to form nerves. The purpose of the nervous system is to coordinate all activities of the body, and enables the body to respond and adapt to changes both inside and outside. The central nervous and the peripheral nervous systems are very similar but different at the same time. The CNS is made up of the brain and spinal cord and functions mainly to process information and determine the appropriate responses. The central nervous system receives sensory information, figures out a response, and initiates a motor response if appropriate. The CNS is protected by the skull, vertebral column, and a membrane. The spinal cord provides communication between the brain and the peripheral nerves
...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).
This fluid is what the brain literally floats in. A third protective measure taken by the brain is called the blood brain barrier. This barrier consists of a network of unique capillaries. These capillaries are filters for harmful chemicals carried by the blood, but do allow oxygen, water and glucose to enter the brain.
Wolf, A. (2011). What is cryonics?. In Institute for Evidence-Based Cryonics. Retrieved December 30, 2013, from http://www.evidencebasedcryonics.org/what-is-cryonics/.
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!