Homeostasis Feedback and Body Essay Example For Students

Homeostasis: Feedback and Body Essay Homeostasis is a simple term which holds a large significance in the functionality of the human body. This essay will discuss and define this term. Explanation as to why homeostasis is important to be maintained and two examples of homeostasis relevant to its control mechanism will be stated in this essay as well. The word homeostasis was first introduced by Walter B. Cannon, an American physiologist, to describe the body’s ability to maintain relative stability of its internal conditions even though there were constant changes in the surroundings outside. (Marieb Hoehn, 2007). Thus, homeostasis is utterly defined as â€Å"the condition of equilibrium in the body’s internal environment due to the constant interaction of the body’s many regulatory processes†. (Tortora Derrickson, 2009, p. 8). Homeostasis has a dynamic state of balance, in which the body’s internal condition may vary, but only within a narrow range that is compatible with maintaining life. (Marieb Hoehn, 2007). The important concept here is that the body is continuously monitoring its internal state and takes action to rectify disruptions that threaten its normal functions. (Silverthorn, 2001) Humans are multicellular organism, which sits right at the top of the hierarchy of structural organization. The cell is the basic living unit of the body and each organ is a collective of many different cells held together by intercellular supporting structures. (Guyton Hall, 2006). Each type of cells usually differs from one another in order to adapt and serve their functionality; but ironically all cells are comparatively similar in a particular way as they share certain basic characteristics. These similarities of theirs are fundamentally the reason why it is important to maintain homeostasis. An adult human body is 60% fluid. Although most of this fluid, called the intracellular fluid, is inside the cells, one third of it fills the narrow spaces outside the cells. That fluid is identified as the extracellular fluid. (Guyton Hall, 2006). Extracellular fluid is always in constant motion, travelling throughout the body in the circulating blood. Ions and nutrients that make up the extracellular fluid are needed by cells to sustain cell life. Hence, all cells in essence live in the same environment – the extracellular fluid. In ddition, the proper functionality of body cells is also highly dependent on an accurate control of the composition of the extracellular fluid which surrounds them. (Guyton Hall, 2006; Tortora Dirrickson, 2009). For these reasons, the extracellular fluid is also known as the body’s internal environment. Extracellular fluid acts as a transition between the intracellular fluid inside cells and the organism’s exterior environment. As tolerances for much change is exceedingly low for cells of multicellular organisms, it therefore depends on the consistency of the extracellular fluid to maintain normal function. Because of extracellular fluid’s significant role, sophisticated physiological processes have been developed to keep its composition relatively stable. (Tortora Dirrickson, 2009; Silverthorn, 2001). When the extracellular fluid composition has an abnormal range, compensatory mechanisms activate in order to return the fluid to normal state. Homeostasis is of such importance because it is the body’s platform of balance to maintain health and preserve life. An important aspect of homeostasis is communication within the body. Organ systems do not work solely by themselves; cooperation between them is essential to promote the well being of the body. (Marieb Hoehn, 2007). The body’s regulating systems that can usually bring the internal environment back into balance is mainly done by the communication between the nervous and the endocrine system. These two regulating systems work either independently or together, using neural electrical impulses or blood- borne hormones respectively, as information carriers, to provide the needed corrective measures. (Tortora Dirrickson, 2009; Marieb Hoehn, 2007). Deming EssayAn example of positive feedback as a homeostatic mechanism is blood clotting. When a blood vessel is damaged, a whole series of reaction is set in motion to achieve hemostasis, meaning the stopping of bleeding. Three steps occur in rapid sequence during hemostasis: (1) Vascular spasm – constriction of damaged blood vessel; (2) Platelet plug formation – platelets are element found in blood and have an imperative role in the clotting process. Platelets form a temporary plug that seals the break in the damaged vessel. They cling themselves to the injured site and releases chemicals, initiating the positive feedback cycle that attracts more platelets to the area, building up the platelet plug which further reduce blood loss. (3) Coagulation or blood clotting – blood changes from liquid to gel form involving multistep process. ( Marieb Hoehn, 2007). Homeostasis is restored by which the blood volume is maintained with preventing blood loss. In conclusion, homeostasis means the maintenance of virtually steady conditions in the body’s internal environment. It is important to sustain life and keeping the body healthy. Efficiency of the regulating systems in correlation with the feedback system is essential for homeostatic control mechanism which is the negative and positive feedback mechanisms. Homeostasis can be witness not only in body temperature and blood volume maintenance but also in many other parts of the body. Homeostasis is of such importance that the disturbance of it and failure of compensation to restore it will result in illness or diseases. Word count: 1028 Bibliography Guyton, A. C. , Hall, J. E. (2006). Textbook Of Medical Physiology. Pennsylvania: Elsevier Saunders. Marieb, E. N. , Hoehn, K. 2007). Human Anatomy Physiology. San Francisco: Pearson Benjamin Cummings. Silverthorn, D. U. (2001). Human Physiology: an integrated approach. Upper Saddle River: Prentice Hall. Tortora, G. J. , Derrickson, B. (2009). Principles of Anatomy and Physiology. USA: John Wiley Sons Inc. Homeostasis. (n. d. ). In Wikipedia: The Free Encyclopedia. Retrieved January 27, 2010, from http://en. wik ipedia. org/wiki/Homeostasis DeRosnay, J. (1997, February 17). Homeostasis: resistance to change. Retrieved January 27, 2010, from Principia Cybertica Web: http://pespmc1. vub. ac. be/homeosta. html

Detailed Notes on Perfume Essay Topics in an Easy to Follow Manner

Detailed Notes on Perfume Essay Topics in an Easy to Follow Manner There is a variety of of essays, and every one of them is challenging in a different way. So, the choice of the topic is most important. Persuasive essay topics don't always must be of a significant nature, you can write about things which are relevant in your life. In an issue of speaking, picking out persuasive essay topics is similar to telling yourself what you need to convey to the rest of earth. Persuasive or argumentative essays are supposed to convince the audience of somebody's viewpoint about a specific topic. Argumentative essay topics are so important since they are debatableand it's important to at all times be critically contemplating the world around us. Moral argumentative essay topics are a few of the simplest to get carried away with. Occasionally, selecting an excellent argumentative essay topics will be quite tough. You don't need to acquire super technical with legal argumentative essays, but make certain to do your homework on what the recent laws about your preferred topic actually say. When picking out persuasive essay topics to write about, it would be better to stick to your very own personal opinions so you are going to have a definite idea on what things to put in it. The key to pick out a fantastic topic for an argumentative essay is to choose a subject where there's a lot of debates on topics or stances. There are several good persuasive essay topics to pick from. Should you need professional help with argumentative essay topics, don't hesitate to speak to us. Before you begin, it's imperative to choose topics that you truly know well. It is possible to pick topics from several lists of ready themes. The topic also needs to be the one which provides the students sufficient to write on. Perfume Essay Topics Can Be Fun for Everyone You first have to determine the reason behind your essay, before it is possible to write persuasive content about it. In the event you're not sure it's far better to ask again or talk to a person who got similar job. You don't need to have five paragraphs and three points every moment. It's important to select debatable argumentative essay topics as you need opposing points you may counter to your own points. How to Choose Perfume Essay Topics In addition, it may also be dependent upon difference of opinion between people. You will need to underline the root of the prevailing prejudice in young men and wome n particularly. In the majority of cases, you want to produce a topic that will make it possible for other people to understand your perspective, and telling them to think that what you write is true. You have to make sure you're very interested in the topic before it is possible to persuade others about it. When the perfume oils are collected, they'll be prepared to be blended together. You may think perfume is very good as it smells good. On the flip side, Pleasure perfume indicates a very simple woman with natural eyes makeup. Midnight perfume and Pleasure perfume use various techniques to sell their goods. Perfume Essay Topics - the Story Therefore, either you wish to learn more about how to compose an essay, or you desire some essay writing services or even in case you would like to go through some sample essays, then just refer to WritingBest and all of your requirements will be fulfilled whenever possible. Before writing argumentative essay, a suitable comprehension of the subject ought to be developed, and relevant and authentic material ought to be used. Following are a few of the advised sociology essay topic for those students that are unable to pick a great topic for their assignment. The essay writing must be carried out in a well-planned and structured method. When writing an important composition, it's a good idea to pick contradictive topics. Last word of advice is to ask your teacher before the last decision about the subject selection for argumentative essays. What to Expect From Perfume Essay Topics? Most people believe that you should have three arguments. In this kind of situation, it's more convenient to locate ready-made essays and use them as an example. An excellent topic will allow it to be simpler to pursue the purpose of an argumentative essay, which is, apparently, the entire investigation of the problem you speak about. To the contrary, you might not have been provided a specific topic in any respect.

Writing a Persuasive Essay About Good Things That People Are Doing in Society

Writing a Persuasive Essay About Good Things That People Are Doing in SocietyWhile writing persuasive essays about the great things that people do in order to improve their lives and our society, the most important thing to remember is to include a plethora of positive points. People who write and submit persuasive essays are mostly those who have accomplished something that they're quite proud of.In fact, some people have achieved a significant amount of success by writing an essay or even a short report about good things that are going on in the world. In this regard, persuasive essays on such matters will almost always be about how things have improved since these individuals started living in the modern world. The fact that they have been able to accomplish great things in such a short period of time should inspire you to follow in their footsteps.One way to help you in writing a persuasive essay about good things that people are doing in society is to add references to more good things that you can personally observe. To take it a step further, you could even write personal essays with reference to the progress that has been made by your fellow human beings. These examples are best done by referring to books or watching videos produced by those who have made progress and have changed the world for the better.It goes without saying that there are two ways to write a persuasive essay. One involves referencing specific examples as well as using case studies, while the other involves sourcing and citing specific books or articles in order to back up the information that you are providing. Some of the articles and sources that you can use to create an argument are:You may have read books on these topics; books on living a better life, improving society and so on. If you feel that you need to improve your knowledge in these areas, then a good way to take hold of some knowledge is to read more good things to write a persuasive essay about.For example, if you have read an article in the local newspaper or on the internet which supports what you are advocating, you can create an argument for it based on the information that you have gathered from books and the news reports that support it. This might sound a bit technical, but it doesn't mean that you can't achieve success at all by this approach. In fact, it's actually quite simple and easy to do.As you can see, it's always best to cite and add references to support your arguments and to keep your persuasive essay from sounding like a dry academic paper. You should also avoid unnecessary ad hominem attacks, although you might want to do so in order to make the readers to accept what you're writing about.When writing a persuasive essay, one thing that you have to bear in mind is that you don't have to be correct. If you come across anything that you think is incorrect, then you should get it corrected. However, keep in mind that you're writing a persuasive essay not a formal academic one and your final outcome should be grammatically correct, but should make a strong and convincing argument.

Essay - Why Implementing Technology in Writing Good Or Bad For Us?

Essay - Why Implementing Technology in Writing Good Or Bad For Us?What does it take to write an essay about why implementing technology in writing good or bad for us? There are many good reasons to integrate technology in our work and curriculum and it is important that you be involved in the process. In this essay I will tell you how to use technology in the future of education and how to assess the benefits of integrating technology in writing.The first thing you should do is find out what is best for us. Do you want to integrate technology to writing to make it more fun, interactive, collaborative and interesting? Do you want to focus on research papers and reference materials that can be put online? Or do you want to incorporate advanced forms of communication and web based presentations that are way more exciting?What type of technology should we be using? Should we continue to rely on handwritten dictation, handwritten summaries and essays written on sticky notes? If so, how wi ll students who are studying online react? Will it cause them to quit or will they still be interested in the subject matter?Be sure that you consider all of the options before you commit to anything. Would integrating technology in writing really make a difference in the way that you teach? Do you really have the resources and time to invest in this process? Is it worth all of the extra stress, anxiety and aggravation that you may encounter?Take into consideration that not everyone is interested in the same thing and that there are different perspectives on what technology should be used in our classrooms. You must be willing to consider these issues and your own unique perspectives before you commit to this idea.In this essay I will ask you to look at the possibilities and the benefits that you can get out of integrating technology in writing. Make sure that you can articulate your ideas clearly in the essay and that you present all of the facts about how you would use this techno logy in your own teaching style. Be sure that you evaluate all of your options and that you assess the pros and cons that you might face by integrating technology in writing.We need to think about these questions before we do anything. When we incorporate technology in writing we are asking ourselves a lot of questions and this is important because it lets us use the technology in a way that is exciting, interesting and engaging. So, I hope that you consider all of these things when you are writing your essay about why implementing technology in writing good or bad for us.

Sample Essay Writing for English Proficiency Test

Sample Essay Writing for English Proficiency TestSample essay writing for English proficiency test, yes, they are indeed available. However, what makes such preparation a necessity? Why is the requirement of sample essays so important?You could ask this common question: What is the benefit of writing a sample for the purpose of an English proficiency test? As a matter of fact, the answer to this question should be rather simple and straightforward. It is due to the fact that when a person writes the sample, they learn many methods and techniques that would help them with the practice as well as the evaluation of the essay that they are going to be writing. Now you should realize that in order to pass the essay written by yourself, you would need to be able to grasp this importance of sample writing for English proficiency test.So, what are some of the benefits of the sample essay? For one thing, you would learn how to organize a better essay, based on your own ideas and to the point. Therefore, the final draft would be more informative and concise, and thus be much easier to pass. Furthermore, you would also learn to take into consideration various topics that may be discussed in the final draft of the essay. Therefore, as a matter of fact, the sample would be very helpful in improving the topic analysis as well as the writing skills that would be required for the essay.While a sample essay does not allow you to write an original essay, it does provide you with plenty of valuable information about writing an essay and testing in general. In a way, this means that you will be able to prepare and properly utilize the lessons that you learn from the sample essay. This is the major reason why writing a sample essay is so crucial in preparing for the essay, and how it provides so much value to the writer.Writing a sample for an English proficiency test is quite helpful for you because, in the first place, you would get more practice in writing, you would also learn how to arrange different topics in a logical manner and how to spell correctly when writing the essay. Moreover, you would also learn how to organize the material properly and how to distribute your thoughts in the best way possible, thus teaching you how to organize and list them out in the best possible manner.With this, you would then be able to see that an essay is actually very essential, but that you must practice your skill in writing in order to be able to score well in an essay. Thus, the necessity of writing a sample is very important.Most people find writing an essay a rather difficult task, and therefore they would resort to writing the essay themselves. However, in the end, there are still some things that you would need to know about writing an essay, and one of these things is the need to create a coherent theme or idea for the essay.You would also need to create a specific topic, and you would need to start writing the essay with a specific theme in mind. There are s everal ways in which you can do this, such as through brainstorming and then after that analyzing the flow of the ideas, and following through the flow of the paper to the end. If you will take the help of a sample essay, you will be able to properly organize your thoughts as well as to organize the ideas you have within a certain topic.

McDonalds Corporation

Every corporation has to deal with finances and the distribution of resources. The management and selection of priorities is what differentiates one business from another.Advertising We will write a custom research paper sample on McDonald’s Corporation specifically for you for only $16.05 $11/page Learn More Investments and budgeting techniques must be advantageous in order for further development and growth. McDonald’s is a corporation that has been rather successful in managing its finances and other resources, as can be seen from its popularity and well established economical base. It is obvious that McDonald’s Corporation has been wise in managing its resources and continuing its development worldwide. The fact that it can diversify and adjust to the environment and the demanding market shows that the management is able to figure out what consumers want. A rather straightforward employment has allowed for lower salaries which le ad to more cash flow. The capital is used to open up new locations over the world and the evidence is seen in the following: McDonald’s has opened locations â€Å"in over 118 countries serving approximately 48 million customers per day† (Plunkett, 2008). This means that a large amount of resources is spent on development of McDonald’s restaurants and the satisfaction of customers’ needs and wants. In 2003, the corporation generated $23 billion but at the same time, there were some losses. A new strategy had to be developed to adjust to changes. As the work began, by 2008, â€Å"revenue rose 3 per cent to $ 23.5 billion, but profits jumped 80 per cent to $4.3 billion† (Plunkett, 2008). This took place due to financial modeling and close observations, as the managers were able to determine the specific estimates and values that would be present in the market. Formulating strategies and close comparison to the assets available would yield best results in future expenditures and gains (Hitt, 2008). Since 2010, the operating income has been steadily rising, from 8,780 it grew to 10,093 in 2012 and is estimated to be as high as 11,008 to 11,676 in 2014 and 2015. The key to success are the strategies that focus on bettering the working conditions and customer relations. As the capital is being increased, the company is able to output more resources and invest in potentially beneficial franchises or service modifications.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More A key factor is the increase in the skills of employees which are bettered by training and constant upgrades to the environment. At the same time, the values and stocks have to analyzed, so that the money invested into the company will not lose in the future. When considering discounted cash flow in relation to the net present value, it is important to have in mind th at money made can be worth less than money invested. This happens due to market fluctuations and ever increasing expenses. Thus, a wise strategy would be to calculate the amount of finances made by investments and relate it to the rate of return. This would allow to see how much capital can be used and what the strong sides of investments are (Hitt, 2008). The market, especially on an international level, is a flexible entity that must be closely observed. Just as many other large corporations, McDonald’s heavily relies on investments, future predictions, the market and the economy. An ability to predict any changes in consumers’ wants will define the criteria by which the financial resources of the business are spent and what policies are outdated and must be changed. References Hitt, M. (2008). Competing for Advantage. Mason, United States: Cengage Learning. Plunkett, J. (2008). The Almanac of American Employers 2009. Houston, United States: Plunkett Research, Ltd. This research paper on McDonald’s Corporation was written and submitted by user Michaela Howe to help you with your own studies. You are free to use it for research and reference purposes in order to write your own paper; however, you must cite it accordingly. You can donate your paper here.

Creating an Effective Tardy Policy

Creating an Effective Tardy Policy As a teacher, you are sure to face the issue of students who are tardy to class. The most effective way to stop tardies is through the implementation of a school-wide tardy policy that is strictly enforced. While many schools do have this, many more do not. If you are lucky enough to teach in a school with a system that is strictly enforced than congratulations- that is awesome. You will simply need to make sure that you follow through as required by the policy. If you are not quite as lucky, you will need to create a system that is easy to enforce yet effective against tardies. Following are some methods that teachers have used which you might want to consider as you create your own tardy policy. Realize, however, that you must create an effective, enforceable policy or you will eventually be faced with a tardy problem in your classroom. Tardy Cards Tardy Cards are basically cards given to each student with space for a specific number of free tardies. For example, a student might be allowed three per semester. When the student is late, the teacher marks off one of the spots. Once the tardy card is full, then you would follow your own discipline plan or the schools tardy policy (e.g., write a referral, send to detention, etc.). On the other hand, if the student gets through a semester without any tardies, then you would create a reward. For example, you might give this student a homework pass. While this system is most effective when implemented schoolwide, it can be effective for the individual teacher if strictly enforced. On Time Quizzes These are unannounced quizzes that take place as soon as the bell rings. Students who are tardy would receive a zero. They should be very short, typically five questions. If you choose to use these, make sure that your administration allows this. You can choose to have the quizzes count as a single grade over the course of the semester or possibly as extra credit. However, make sure that you announce the system in the very beginning and that you start using them right away. There is a chance that a teacher could start using these to specifically punish one or a few students- not giving them unless those students are tardy. To be fair make sure that you randomly place them on your lesson plan calendar and give them on those days. You can increase the quantity if you find that tardies are becoming more of a problem over the year. Detention for Tardy Students This option makes logical sense- if a student is tardy then they owe you that time. You would want to give your students a certain number of chances (1-3) before instituting this. However, there are some considerations here: Some students might have no transportation other than the school bus. Further, you do have an additional commitment on your part. Finally, realize that some students who are tardy might be those who are not necessarily the best-behaved. You will be required to spend extra time with them after school. Locking Students Out This is not a recommended means for dealing with tardies. You must consider your liability for student safety. If something happens to a student while locked out of your class, it would still be your responsibility. Since in many areas tardies do not excuse students from work, you will have to get them their make-up work which would, in the end, require more of your time. Tardiness is a problem that needs to be dealt with head-on. As a teacher, do not allow students to get by with being tardy early in the year or the problem will escalate. Talk with your fellow teachers and find out what works for them. Each school has a different atmosphere and what works with one group of students might not be as effective with another. Try one of the listed methods or another method and if it is not working do not be afraid to switch. However, just remember that your tardy policy is only as effective as you are in enforcing it.