HOMEOSTASIS

Starring the digestive system!

WHAT IS HOMEOSTASIS?

Homeostasis helps many body sytstems! For example homeostasis helps the Skeletal System and the Circulatory System.To mantain homeostasis means to keep the internal enviorment of your body properly functioning.

SYSTEM INTERACTIONS

Homeostasis and Digestive system

When blood is pumped from the left ventricle of the heart, much of it passes down the dorsal aorta to the organs of the abdomen. Chief among these organs are those of the digestive tract (fig. 6).

Within the digestive tract the food is broken down to nutrient molecules small enough to be absorbed by the villi of the small intestine. Digestive enzymes are produced by the digestive tract and by the pancreas. In addition the liver produces bile, an emulsifier that plays a role in the digestion of fats. Bile, which is stored in the gallbladder, enters the small intestine along with the pancreatic enzymes. Following the absorption of nutrients, blood passes from the region of the small intestine to the liver by way of the hepatic portal vein.

The liver, which monitors the blood, is a very important organ of 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.

How does the food you eat affect you ?

The job of the digestive system is to break down our food into small particles so they are able to diffuse into our cells easily.While your body is still able to do this and function,you are still prone and maybe more prone to get a disease.It seems normal to eat an abundance of junk food and take in many carbs,fats and sugars that we dont need nowadays.However it may lead to a very hard life!Junk food is a classic example of unbalanced diet usually characterized by high proportion of carbohydrates, refined sugar, salt, fats and low nutritional value, which can raise various health concerns like obesity, cardiac disease, diabetes, high cholesterol, high blood pressure etc. These food are processed and refined in such a way that they lose most of the key nutrients, have low fiber and poor water content.Effects of junk food on our digestive system: Junk food is unhealthy for digestive system as they slowdown the digestion process making the stomach bloated. In order to digest food, stomach needs enzymes and fast food does not have them. When food is absorbed by the intestine it requires fiber and water to excrete but they don't have such nutrients which leads to poor digestion and irritable bowels.