25 May,2019
Table of Contents
When humans are in their healthy state, their body temperature is at 98.6 Fahrenheit and does not drop or rise suddenly. This is an example of homeostasis. It can be defined as the process that helps to maintain the physical and chemical conditions inside the internal environment of the body. If you are studying Biology and specifically Physiology, you have to write papers on Homeostasis. This blog will help you to learn a lot about homeostasis.
Before we know about its importance, it is necessary to learn what is homeostasis. According to the homeostasis definition, it is the constant preservation of optimum physiological conditions. All of our body systems function in accordance with each other to balance the homeostasis of the body.
It can also be considered as the tendency to oppose any change to sustain a constant and stable internal environment.
The American physiologist, Walter Cannon created the term ‘homeostasis.’ He used this term to explain the dynamic equilibrium that our body tries to acquire in order to survive.
Now that you know what homeostasis is, let us move on to learning why it is important.
Homeostasis can be seen as a set of mechanisms of our body that maintains the internal consistency of temperature, energy availability, pH, etc. Life continues if homeostasis is successful, and if not, it can lead to death. Since we are all warm-blooded organisms, it is required to metabolise constantly. Apart from this, we should also retain our pH, temperature, etc. within the narrow range within which the systems of our body functions. Failure to do this will lead to a breakdown, gathering of waste, and ultimately death.
The body pH is monitored very closely. This is due to the fact that enzymes and other molecules in our bodies have certain pH values for performing their necessary functions. But, there are different pH values for the different body parts. Now, it is known to all that the essential molecules in the blood are very different from the ones present in the stomach. The blood must have a basic pH to accommodate haemoglobin. In this case, if the pH level changes even a little, haemoglobin cannot deliver oxygen to the various parts of the body.
A real-life example concerning the importance of homeostasis can be blood glucose regulation. If any issue occurs with the regulation of blood glucose level, a human being can suffer from Diabetes. This disease can be devastating for any human being if not controlled properly. A high sugar level can damage different parts of the body. This is why a Diabetes patient is provided with medicine and diet to assist the body in maintaining homeostasis.
Homeostasis usually includes negative feedback loops that forestall various changes in properties from their target values, which are called ‘set points.’ In contrast, positive feedback loops increase their initiating stimuli. To say it differently, the positive feedback loops take the system away from the beginning.
The body maintains the homeostasis in different ways. Temperature, pH, glucose, blood pressure, toxins, calcium, etc. are regulated by homeostasis.
The condition for organisms to function is that their internal conditions must be kept within a certain range. Hormones are secreted by the endocrine system to help homeostasis to happen.
The basic organisational plan of a single cell and multi-celled organisms create the difference between how they perform homeostasis. A single cell can simply throw out the waste outside their cell, and their work will be done as the metabolic activity will reach their standard level an the internal temperature will balance. However, a multi-celled organism has to give much effort into carrying the waste out of the body.
Homeostasis fully depends on the negative feedback loops. Hence, anything that disturbs the feedback mechanism can upset homeostasis.
Let us take the example of Diabetes. The reason behind the appearance of this disease is a broken feedback loop that involves the hormone insulin. The body cannot lower the high blood sugar level and bring it to a healthy level due to the broken feedback loop.
The condition or term for stable internal conditions is that the negative feedback loops should not get disturbed.
Now that you have a basic understanding of homoeostasis, you can use this information to write your paper or do further research on the topic.
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