And The Digestive System....How the Human Body Works

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What is Homeostatis?

Homeostatis is the key concept of keeping the human body constant, or equal. It regulates the internal conditions in the body and tends to keep the characteristics stable. Homeostatis comes from two Greek words; "Homeo" meaning similar and "Statis" meaning "stable".

What Is The Digestive System?

The digestive system is a group of organs working together to convert energy and basic nutrients to feed the entire body. It is consisted of the stomach, teeth, tongue, salivary glands, liver, gallbladder, and pancreas. Six major functions take place in the digestive system:

  • Ingestion
  • Secretion
  • Mixing and Movement
  • Digestion
  • Absorption
  • Excretion

In the digestive system, the liver, which monitors the blood, is very important organ in Homeostasis. The liver breaks down toxic substances like alcohol and other drugs, and it produces urea, the end product of nitrogenous metabolism. The liver produces the plasma proteins and stores glucose as glycogen after eating. In between eating it releases glucose, thereby keeping the blood glucose concentration constant. The liver destroys old blood cells and breaks down hemoglobin--hemoglobin breakdown products are excreted in bile.

Examples of Homeostatis

One easy example of Homeostatis is hot or cold. As us humans, our normal body temperature is 36.2 to 37.2 degrees Celsius. If the body temperature goes above the normal, then you are likely sick or suffering an infection. Of course, you could get medical treatment for that. But if your body temperature goes below usual, then that is called "Hypothermia". Hypothermia is when you have dangerously low body temperatures. That causes your blood vessels in your hands, feet, arms, and legs to get narrower, and that is not a good sign. If your body temperature stays like this for a couple of hours, your organs can be severely damaged, and you can possibly suffer death.

Systems That Interact With The Digestive System


Your body works similarly to a machine, with different systems that make up your body and allow it to run smoothly. Like a machine, if one system is not running right, your whole body will be affected. These systems perform different tasks in the body and encompass different organs.

The Three Systems

Junk Food VS Health

How The Foods We Eat Effect Homeostatis And Our Health

Junk food can be appealing for a variety of reasons, including convenience, price and taste. For children, who do not always understand the health consequences of their eating habits, junk food may appear especially appetizing. However, regularly consuming fattening junk food can be addictive for children and lead to affecting how they perform in school and extracurricular activities. Kids who regularly indulge in junk food may be at increased risk for health complications like obesity and depression.

Fast food nutrition should make up a minimal part of a healthy diet. Fast foods and junk foods are high in fat, sodium and sugar, which can lead to obesity and a range of attendant health problems, including diabetes, heart disease, and arthritis. Junk food doesn't contain the nutrients your body needs to stay healthy. As a result, you any feel chronically fatigued and lack energy you need to complete daily tasks. The high levels of sugar in junk food puts your metabolism under stress; when you eat refined sugar, your pancreas secretes high amount of insulin to prevent a dangerous spike in blood sugar levels. Because fast food and junk food don't contain adequate amounts of protein and good carbohydrates, your blood sugar levels will drop suddenly after eating, leaving you feeling grumpy, fatigued, and craving sugar.

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Homeostatis.....Keeping The Balance!!

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