Homeostasis - Essay Example

Comments (0) Cite this document
The essay "Homeostasis" describes that maintenance of homeostasis is vital for the body as seen during exercise. The elevated cardiac and respiratory rates in response to increased CO2 and blood acidity must be readjusted later to meet the demand of lower metabolic rate…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER96.3% of users find it useful
Read TextPreview

Extract of sample

Download file to see previous pages The term homeostasis was first used by Walter Cannon in 1932 to illustrate the “maintenance of body’s dynamic constancy”. Homeostasis is a key concept in human physiology which represents the regulatory processes of the body for its optimum functioning mediated by several biochemical and physiological pathways. According to Gilbert, on a cellular level it is a practice through which a relatively constant electrical, chemical, osmotic and internal environment is maintained against a background of extensive range of metabolic demand, intake and loss. Maintenance of homeostasis is vital for the body as seen during exercise. The elevated cardiac and respiratory rates in response to increased CO2 and blood acidity must be readjusted later to meet the demand of lower metabolic rate. If this service is not done the body conditions lead to disease and ultimately death. Homeostasis is maintained by stimulus identification at tissue level with the help of sensors present in skin and sensory organs. These signals are then sent to peripheral sensory nerves and later to spinal cord and brain where depending on the type of stimulus a chain of physiological reaction is set off to maintain homeostasis in the body which may involve survive mechanism, stability in autonomic functions and immunological responses (Lawton, 2003). These responses are carried out by effectors such as muscles and glands. In some cases the responses to a stimulus are particularly elicited by either nervous or endocrine system however, in some cases it is a combination of both (Farabee, 2006). The process through which a constant internal environment (homeostasis) is maintained is known as homeostatic mechanism. Homeostatic control in the body is achieved through feed-back system which may be negative feed-back loop or positive feed-back loops. Negative feed-back loops (employed by most of the body’s systems) turns off the response to a particular stimulus thereby maintaining most of homeostatic activities while positive feed-back loop intensifies the effect of the particular response (Farabee, 2006). Positive feed-back intensifies the effects of change and therefore does not play a vital role in maintaining homeostasis. Stimulus? Sensor?Integrator? Effector Negative feed-back loop Systems involved in homeostasis: In a healthy body homeostatic maintenance is done by collaborative efforts of central systems of the body such as nervous, endocrine, circulatory, digestive and lymphatic. The balancing responses of these systems to a stimulus tend to maintain a proper homeostasis in body (Lawton, 2003). Major homeostatic controllers of the body are nervous and endocrine systems which constitute extrinsic control system. However, local or intrinsic control system usually involves an organ or a tissue e.g. dilation of blood vessels in reaction to higher levels of carbon dioxide and lower oxygen levels (Farabee, 2006).  ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
(“Homeostasis Essay Example | Topics and Well Written Essays - 1000 words”, n.d.)
Retrieved from https://studentshare.org/biology/1416967-explain-in-detail-the-meaning-of-homeostasis-what
(Homeostasis Essay Example | Topics and Well Written Essays - 1000 Words)
“Homeostasis Essay Example | Topics and Well Written Essays - 1000 Words”, n.d. https://studentshare.org/biology/1416967-explain-in-detail-the-meaning-of-homeostasis-what.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document
What do we mean by maintaining control of the balance of the ecosystem? Ecosystems are fragile making it essential for a balance of the various life forms. For instance, rodents may multiply due to the influence of factors beneficial to their multiplication with the potential for upsetting the balance of the ecosystem.
5 Pages(1250 words)Research Paper
This small body part involved in many homeostasis activities such as regulating the body temperature, thirst, hunger, heart rate as well as the blood pressure. However, maintaining the constant equilibrium of body
8 Pages(2000 words)Assignment
Some of these include: Since muscle cells need a steady supply of energy to keep the contracting and relaxing during exercise, the rate at which energy is consumed increases due to the increase in activity. When
1 Pages(250 words)Assignment
In the context of athletic training, exercise can be viewed as the training or conditioning performed in respect to sporting objectives. Further, athletic training may aim at improving physical
3 Pages(750 words)Research Paper
Thus internal environment of the body is maintained by a close surveillance system and timely response to any change which may affect homeostasis. This adjustment of physiological systems within the body is called homeostatic regulation (Wikiepedia 2007).
4 Pages(1000 words)Essay
For the purpose of this paper, we will be limiting the reference to humans as organisms. The search and removal of wastes inside the body which it produces, is called the process of excretion (Poison Protection). The major organs of excretion are the kidneys for urine elimination, the large intestines for expelling of solid wastes, the lungs for expelling carbon dioxide and water vapor, and the skin for eliminating salt and water through sweat.
4 Pages(1000 words)Essay
he middle of the twentieth century, a biophysical hypothesis mainly based on self-structure and Dynamic Systems hypothesis permitted individuals to come up to the quantity and quality analysis of the structured difficulty that makes up living systems (Ikegami and Suzuki,
1 Pages(250 words)Assignment
These proteins encoded by genes perform different functions in the body. The arrangement of these bases in the genetic machinery is done in a sequence. Any abnormality in genetic
5 Pages(1250 words)Essay
Blood sugar level refers to the amount of glucose level that is present in the blood to be used as fuel by the cells to provide energy necessary for the processes of the cell. The blood sugar levels may vary at different times. After digestion, the level of blood sugar
3 Pages(750 words)Assignment
There are a wide number of changes that occur in the body. If these changes do not occur and the homeostatic mechanism keeps them at a set point for example body temperature which needs to be lowered or increased as per the changes in the external environment and if this temperature is kept at a set point, the body may not be able to survive at all.
2 Pages(500 words)Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Let us find you another Essay on topic Homeostasis for FREE!
logo footer
Contact us:
Contact Us Now
FREE Mobile Apps:
  • StudentShare App Store
  • StudentShare Google play
  • About StudentShare
  • Testimonials
  • FAQ
  • Blog
  • Free Essays
  • New Essays
  • Essays
  • Miscellaneous
  • The Newest Essay Topics
  • Index samples by all dates
Join us:
Contact Us