Homeostasis in the Human body
Homeostasis is the process of controlling or maintaining stability between the internal and external environment. In the human body, homeostasis is the process of maintaining and controlling the water and temperature at stable levels to ensure that the cells function well. Failure to maintain stable conditions could hinder the proper functions of important body processes such as osmosis (Palaparthi, 2017).
An example of homeostasis outside the human body is the iron box. When connected to electricity and switched on, an iron box will start heating up until a certain temperature. Once this temperature is reached, the iron box will stop heating up. However, if the temperatures start going down, the iron box starts heating up again to maintain the same degrees of temperature.
In the human body, homeostasis is a continuous process that ensures stable conditions are maintained to facilitate proper cell functions. Examples of homeostasis in the human body include:
- Maintenance of blood glucose levels – Glucose is a sugar that is found in the blood stream and the body maintains specific levels of glucose. If glucose levels increase, the pancreas releases insulin to covert the excess sugar. If glucose levels reduce, stored sugar is converted to glucose.
- Maintenance of body temperature – An increase in body temperature causes the hypothalamus to send messages to make the blood vessels to come nearer the skin and the body to sweat more. In contrast, a decrease in body temperature leads to reduced sweating and constricting of blood vessels (Palaparthi, 2017).
- Maintenance of blood pressure – an increase in the blood pressure triggers the brain to send messages to the heart to slow down pumping. In contrast, a decrease in blood pressure leads to the heart pumping more to normalize blood pressure.