Evaluation of homeostasis in the Human Body

homeostasis in the Human Body
7 mn read

The concept of homeostasis is key in comprehending human body works. Homeostasis refers to the process of keeping things in constant. The word homeostasis comes from to Greek words: “homeo” which means ‘similar’ and ‘stasis’ which means ‘stable.’ Thus, homeostasis is a biological word which refers to a system or mechanism that manages its internal environment and tends to maintain a steady, relatively regular, condition of properties (Modell et al, 2015, 256). This concept argues that all living things maintain a constant and stable internal environment which helps in reserving the constant conditions of life. Homeostasis is a process constantly happening to our bodies. For instance, we eat, drink, work, and engage in a lot of activities yet our body composition remains stable and same.

The concept of homeostasis was introduced by French physiologist known as Claude Bernard. He stated that no all-important mechanism consists of one object, which helps in preserving and maintaining steady conditions of life. Therefore, this one object is homeostasis that regulates the process by which biological systems tries to preserve steadiness while changing to situations that are crucial for survival. The homeostasis is vital biological system since if its succeed life continues and if it fails death prevail. For instance, body size example of homeostasis process in our bodies. Thus, no matter how much water we drink and eat our body doesn’t swell up like a balloon (Modell, et al, 2015, 261). Therefore, this process helps human bodies to keep a certain amount of fluid at regular level regardless of the amount of fluid we consume.

2.0 Introduction

Homeostasis plays an important role in human body. For the body environment of human beings to live and function it entirely depends on body cells. Therefore, the homeostasis keeps the internal body environment under controls thus enabling the cells to function and live. Thus, without appropriate body conditions, a certain process in the body will not function properly. For the homeostasis processes to work endocrine systems plays an important part. The endocrine system consists all the glands in the human body that makeup hormones. If the endocrine system is not healthy the chemical messengers in our body will not function properly leading to health-related issues (Kambe et al, 2015 777). Thus, the endocrine system involves homeostasis for it maintains chemical body reactions are well. Endocrine systems help in controlling how the body functions. To understand how homeostasis the paper looks into examples of homeostasis within the human body, i.e., body temperature, maintenance of healthy blood pressure and glucose level in human body (Kambe et al, 2015, 756). Thus for the human body to remain healthy body temperature, blood pressure and glucose in the body must maintain a constant and stable level. Homeostasis plays an important role in regulating and preserving the constant internal environment of the body. Also, for human organs system works to maintain healthily there are key organs. How these organs work together and contribute essentially to the human body. Therefore, the paper discusses the importance of homeostasis within a human body, the interaction between the endocrine system and homeostasis and examples of homeostasis within the human body. Also, the explanation of how key body organs work as well as the explanation of endocrine system helps in controlling body functions.

3.0 Importance of Homeostasis within Human Body

To keep our body’s health at the highest level, there must be a sense of balance between energy acquisition and utilization. Therefore oversupply can affect the body system as well as undersupply. Thus the significances of homeostasis within our body include:

3.1 Homeostasis importance to cells

Cells depend on the human body to functions and live. Also, living cells rely on movement of chemical around the body. Chemicals in our body are transported into and out of cells. The processes of transporting chemical such as oxygen, carbon dioxide and dissolve are done through diffusion and osmosis (Kambe et al, 2015 265). Diffusion and osmosis rely on body’s fluid and salt balance. The body’s water and salt balance is preserved and maintained by homeostasis. Also, homeostasis helps the body to maintain it stable and constant body temperature. Body temperature is essential to enzymes that facilitate chemical reactions that keep the cell alive.

3.1.1 Diffusion

Diffusion is the movement of particles in and out of the cell from the area of high concentration to an area with more space, i.e., area of low concentration. Homeostasis maintains constant body conditions for this process to take place. For example:

3.1.1.1 Diffusion in lung

In the lungs, the blood continuously takes in the oxygen from the area of high concentration, i.e., alveolar air spaces, this because there is more oxygen in alveolar space than in the blood. The oxygen spreads across the alveolar walls into the blood. The circulation spread the oxygen-rich blood away and replaces it with blood with less oxygen.

3.1.2 Osmosis

Osmosis is the movement of water molecules from a dilute solution to a more concentrated solution through a partially permeable membrane. This process is a special type of diffusion. For this process to occur, body conditions must be in balanced equilibrium. Homeostasis helps in keeping the body conditions in good shape.

Therefore homeostasis plays an important in the human body.

3.1.3 Enzymes

Enzymes are proteins responsible for speeding up chemical reactions in our cells. Thus, they act as the catalyst of chemical reactions in our cells. Enzymes work well when the body temperature is at optimum levels. The homeostasis keeps the body temperature at an optimum level, thus; enabling enzymes to work properly.

4.0 Involvement of Endocrine System in Homeostasis

The endocrine system includes all the glands in the human body that make up hormones. The endocrine play a significant role in homeostasis since the hormones control the activity of the body cells. Stimulus regulates the release of hormones into the body cells. For instance, the stimulus either results in an increase or decrease of the number of hormones produced. This mechanism is known as feedback regulation. The mechanism occurs when a response to stimulus change has the impact of the original stimulus (Modell et al, 2015 264). The type of response is either negative or positive feedback. Negative feedback occurs when a response to the stimulus reduces the original stimulus while positive feedback does the opposite. Negative feedback is most common in biological systems since the systems act in opposite direction of chance. This process tends to keep thing steady and constant, thus; allowing homeostatic balance. Example of negative feedback: when there is an increasing concentration of carbon dioxide in the human body, lungs are signaled increase their activity more as results their exhale more carbon dioxide. Therefore, the endocrine systems help in maintaining homeostasis balance in the human body.

5.0 Example of Homeostasis within Human Body

Homeostasis refers to the ability of the internal environment of the human body to maintain constant and stability under different changes. Examples of homeostasis in the human body include:

I. The maintenance of good and healthy blood pressure. The heart senses changes in the blood pressure, thus; signaling to brains about the blood pressure changes. Then the brain signals to heart on how to respond to the changes in blood pressure. Therefore, if blood pressure is too high, the heart should slow down and vice versa. The maintenance of the healthy blood pressure is an example of the homeostasis of the human body.

II. Another example of the homeostasis is the human’s body temperature. A healthy human beings body temperature remains at the constant level of 37.5 degrees Celsius equivalent to 98.6 degrees Fahrenheit (Ribas-Latre, 2016 140). The body regulates temperate by making or releasing the heat internally. Thus, the homeostasis controls temperature within itself to help in keeping the cells alive and function.

III. Also, another great example of homeostasis within the human body is the ability of the body to maintain constant levels of Glucose. Glucose is the type of sugar in the bloodstream that helps the body to remain healthy. Thus, when the glucose levels are too high in the bloodstream, the pancreas releases insulin hormone to balance it and when the glucose is too low livers converts glycogen in the blood increase the glucose levels.

6.0 Organ systems working together contribute to overall body function

Body organ systems work together to contribute to overall body function, thus; helping in maintaining a healthy body. The key organ systems and how they work with each other include:

6.0.1 Respiratory and Circulatory System

The respiratory system consists of lungs and other breathing systems organs. Air enters the lungs, and it travels through bronchi to alveolar air spaces, this because there is more oxygen in alveolar space than in the blood (Modell et al, 2015 260). The oxygen diffuses across the alveolar walls into the bloodstream through capillaries. The oxygen-rich blood travels back to heart, circulatory system, where then it transferred other parts of the body.

6.0.2 Circulatory and Digestive System

The organs of the digestive system need blood to accomplish its function. Circulatory systems supply the rich blood to the digestive systems enabling the organs to digest food. Also, after digestion, circulatory systems distribute nutrients to other parts of the body. This helps in maintaining a healthy body, thus; contributing to the overall well functioning of the body.

6.0.3 Digestive and Endocrine Systems

These two body organ systems work together to provide the body with glucose. The digestive systems digest carbohydrates which are turned into glucose. Then the pancreas which part of the endocrine system produces insulin (hormone) that regulates the amount of sugar in the blood. For instance, the glucose levels are too high in the bloodstream, the pancreas releases insulin hormone to balance it and when the glucose is too low livers converts glycogen in the blood increase the glucose levels (Ribas-Latre, 2016 149).

7.0 Endocrine system help control our body functions

The endocrine system has a control effect on other organ systems within the human body. In the muscular system, hormones (produces by the endocrine system) adjust energy production, muscle metabolism as well as grow. In the nervous system, hormones control amount of fluid, level of ion concentration and also it affects neural metabolism (Ribas-Latre, 2016 144). Also, endocrine system helps in the production of hormones that are influential in brain development. Thus, endocrine system affects and controls muscular systems and nervous systems for the body functions to operate effectively.

8.0 Conclusion

Homeostasis plays an important role in human body. For the body environment of human beings to live and function it entirely depends on body cells. Therefore, the homeostasis keeps the internal body environment under controls thus enabling the cells to function and live. Thus, without appropriate body conditions, a certain process in the body will not function properly. For the homeostasis processes to work endocrine systems plays an important part. The endocrine system consists all the glands in the human body that makeup hormones. If the endocrine system is not healthy the chemical messengers in our body will not function effectively, thus; results to health-related issues. Also, for the body to be healthy, all body organ systems must work together for the better function of the body.

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