Homeostasis in the human body

The latter have almost the same salt content as the extracellular fluid, whereas the former is hypotonic with respect to plasma. Urinary System Toxic wastes build up in the blood as proteins and nucleic acids are broken down and used by the body. Now you have lots of different examples of homeostasis and you Homeostasis in the human body recognize homeostasis in your own body.

A disruption within one system generally has consequences for several additional body systems. The cessation of urine flow prevents the hypovolemia and hypertonicity from getting worse; the drinking of water corrects the defect. The endocrine system of a person with diabetes has difficulty maintaining the correct blood glucose level.

Common Homeostasis Examples Here are some homeostasis examples: On the other hand, the body reduces heat-loss in cold surroundings by sweating less and reducing blood circulation to the skin.

For example, a woman whose ovaries are removed early in life is at higher risk of developing osteoporosis, a disorder in which bones are thin and break easily. The urinary system is also directly involved in maintaining proper blood volume.

Therefore, the blood of an anemic woman will have reduced oxygen-carrying capacity. The reproductive system relates instead to the maintenance of the species.

Among other things, regular physical activity increases the ability of the cardiovascular system to deliver oxygen to body cells, including the brain cells. An individual simply urinates the toxins and other nasty things from the blood, restoring homeostasis to the human body.

What is Homeostasis?

This vicious cycle of positive feedback, a "runaway" process, can only end in death if not stopped. Cancer can be genetically inherited or be due to a mutation caused by exposure to toxin such as radiation or harmful drugs. Control of blood glucose level is an example of negative feedback.

Homeostasis and Regulation in the Human Body

The hypothalamus simultaneously stimulates the nearby thirst center causing an almost irresistible if the hypertonicity is severe enough urge to drink water. Genes are sometimes turned off or on due to external factors which we have some control over.

Too much toxicity also causes homeostatic imbalance, resulting in cellular malfunction. This decapeptide is known as angiotensin I. When a person takes too much of a drug that affects the central nervous system, basic life functions such as breathing and heartbeat are disrupted.

A person with a high fever has hot, dry skin if they do sweat to help cool it. Staying fit by regularly taking part in aerobic activities such as walking, shown in Figure 4, has been shown to help prevent many of these diseases.

Measurement of the plasma osmolality to give an indication of the water content of the body, relies on the fact that water losses from the body, through unavoidable water loss through the skin which is not entirely waterproof and therefore always slightly moist, water vapor in the exhaled airsweatingvomitingnormal feces and especially diarrhea are all hypotonicmeaning that they are less salty than the body fluids compare, for instance, the taste of saliva with that of tears.

This is because sodium is reabsorbed in exchange for potassium and therefore causes only a modest change in the osmotic gradient between the blood and the tubular fluid.

Thermoregulation is another example of negative feedback. When hydrogen ions are excreted into the urine, and bicarbonate into the blood, the latter combine with the excess hydrogen ions in the plasma that stimulated the kidneys to perform this operation.

Blood glucose concentration rises after a meal the stimulus. The human body is full of examples of homeostasis.

Homeostasis Examples

Homeostasis has found useful applications in the social sciences. For example, the human body uses a number of processes to control its temperature, keeping it close to an average value or norm of A person with diabetes has to monitor their blood glucose carefully.

Cells that have too much water in them bloat and can even blow up. To identify the process by which body systems are kept within certain limits.

What are the Effects of Low Cortisol Levels?Video: What Is Homeostasis? - Definition & Examples. Homeostasis in the Human Body Factors that Influence Rest & Sleep What is Homeostasis?

- Lesson for Kids. WALTER CANNON devised the term homeostasis in while referring to how the body maintains its temperature, among other key variables. Credit: American Psysiological Society.

Homeostasis, from the Greek words for "same" and "steady," refers to any process that living things use to actively maintain fairly stable conditions necessary for survival.

Homeostasis refers to stability, balance, or equilibrium within a cell or the body. It is an organism’s ability to keep a constant internal environment.

How Does the Human Body Maintain Homeostasis?

It is an organism’s ability to keep a. The human body is an exquisite machine, partly because it maintains functionality in a variety of environments. Humans can thrive in conditions ranging from the arctic to the equator, and with a variety of diets and lifestyles.

Part of the reason for this adaptability is the body's ability to maintain homeostasis. Homeostasis is a fancy word meaning.


The maintenance of homeostasis by negative feedback goes on throughout the body at all times, and an understanding of negative feedback is thus fundamental to an understanding of human physiology. Negative Feedback. Video: Homeostasis in the Human Body Homeostasis is the term we use to describe the reasonably stable internal environment of your body.

Learn how parts of your body communicate with each other to maintain this state of homeostasis, and how negative feedback loops work.

Homeostasis in the human body
Rated 3/5 based on 81 review