and the Digestive System

Homeostasis and the Digestive System


Homeostasis refers to how a person under conflicting stresses and motivations can maintain a stable psychological condition. A good example is the law of supply and demand, whereby the interaction of supply and demand keeps market prices reasonably stable.Another meaning of Homeostasis is the human body uses a number of processes to control its temperature, keeping it close to an average value or norm of 98.6 degrees Fahrenheit.For example,A person with a high fever has hot, dry skin if they do sweat to help cool it. On the other hand, the body reduces heat-loss in cold surroundings by sweating less and reducing blood circulation to the skin.

The Digestive System

The digestive system is the series of tube like organs that convert our meals into body fuel. Along the way, food is broken down, sorted, and reprocessed before being circulated around the body to nourish and replace cells and supply energy to our muscles.Moistening saliva fed into the mouth from nearby glands starts the process of chemical digestion using specialized proteins called enzymes.Once we swallow, digestion becomes involuntary.The esophagus empties into the stomach, a large, muscular chamber that mixes food up with digestive juices including the enzymes pepsin, which targets proteins, and lipase, which works on fats. Hydroelectric acid likewise helps to dissolve the stomach contents while killing potentially harmful bacteria.The first of three sections of the small intestine, the duodenum produces large quantities of mucus to protect the intestinal lining from acid in the chyme. The small intestine is where the major digestion and absorption of nutrients take place.These nutrients are taken into the bloodstream, via millions of tiny, finger like projections called villi, and transported to the liver.What's left in the digestive tract passes into the large intestine, where it's eaten by billions of harmless bacteria and mixed with dead cells to form solid feces.

Other interesting Systems

What you eat depends on your future

Do you ever think what you eat? The food that you eat may change you in the future.When combined with exercise, a healthy diet can help you lose weight, lower your cholesterol level, and improve the way your body functions on a daily basis.