1,950
7
Essay, 2 pages (300 words)

The importance of negative feedback mechanisms essay

In order to maintain homeostasis or balance, there must be a control mechanism. According to Guyton (2000), there are several control mechanisms present in the body and most of them act by negative feedback. Negative feedback mechanisms reduce or suppress the original stimulus, given the effector’s output.

Most homeostatic control mechanisms require a negative feedback loop to keep conditions from exceeding tolerable limits. The purpose is to prevent sudden severe changes within a complex organism. This is the most common extrinsic control system to maintain homeostasis. There are hundreds of negative feedback mechanisms in the human body. Among the most important regulatory functions are: thermoregulation, osmoregulation, and glucoregulation.

Therefore, in general if some factor becomes excessive or deficient , a control system initiates feedback, which consists of a series of changes that return the factor toward a certain mean value, thus maintaining homeostasis. According to Farabee (2006), the loss of the negative feedback mechanisms might cause deleterious effects on the organs of the body. A positive feedback mechanism when unchecked by a negative feedback mechanism will cause a vicious circle and death. For example during acute hemorrhage, if the personis suddenly bled 2 liters, the amount of blood in the body is decreased to such a low level that not enough is available for the heart to pump effectively (the heart of a human being pumps about 5 liters of blood per minute). As a result, the arterial pressure falls, and the flow of blood to the heart muscle through the coronary vessels diminishes.

This results in weakening of the heart, further diminished pumping, further decrease in coronary blood flow, and still more weakness of the heart.; the cycle repeats itself again and again till death occurs. Works Cited : Farabee, M.  J., (2006).

Animal Organ Systems and Homeostasis. Estrell MountainCommunity College. http://www. emc. maricopa.

edu/faculty/farabee/biobk/BioBookANIMORGSYS. htmlGuyton, A. C., & Hall, J. A.

(2000). Textbook of Medical Physiology: 10th edition. Philadelphia, USA: W.

B. Saunders Company

Thank's for Your Vote!
The importance of negative feedback mechanisms essay. Page 1
The importance of negative feedback mechanisms essay. Page 2
The importance of negative feedback mechanisms essay. Page 3

This work, titled "The importance of negative feedback mechanisms essay" was written and willingly shared by a fellow student. This sample can be utilized as a research and reference resource to aid in the writing of your own work. Any use of the work that does not include an appropriate citation is banned.

If you are the owner of this work and don’t want it to be published on AssignBuster, request its removal.

Request Removal
Cite this Essay

References

AssignBuster. (2021) 'The importance of negative feedback mechanisms essay'. 31 December.

Reference

AssignBuster. (2021, December 31). The importance of negative feedback mechanisms essay. Retrieved from https://assignbuster.com/the-importance-of-negative-feedback-mechanisms-essay/

References

AssignBuster. 2021. "The importance of negative feedback mechanisms essay." December 31, 2021. https://assignbuster.com/the-importance-of-negative-feedback-mechanisms-essay/.

1. AssignBuster. "The importance of negative feedback mechanisms essay." December 31, 2021. https://assignbuster.com/the-importance-of-negative-feedback-mechanisms-essay/.


Bibliography


AssignBuster. "The importance of negative feedback mechanisms essay." December 31, 2021. https://assignbuster.com/the-importance-of-negative-feedback-mechanisms-essay/.

Work Cited

"The importance of negative feedback mechanisms essay." AssignBuster, 31 Dec. 2021, assignbuster.com/the-importance-of-negative-feedback-mechanisms-essay/.

Get in Touch

Please, let us know if you have any ideas on improving The importance of negative feedback mechanisms essay, or our service. We will be happy to hear what you think: [email protected]