máltíðarkerfi

Máltíðarkerfi, also known as the digestive system, is the biological system within animals that breaks down food into nutrients that can be absorbed and utilized by the body. In humans, it consists of the digestive tract and associated organs, including the mouth, esophagus, stomach, liver, pancreas, gallbladder, small intestine, and large intestine. The process of digestion begins in the mouth with mechanical and chemical breakdown of food by saliva and enzymes. The esophagus transports the food to the stomach, where it is further broken down by stomach acid and enzymes. The liver and pancreas produce bile and enzymes that aid in digestion, which are stored in the gallbladder and released into the small intestine. The small intestine is the primary site of nutrient absorption, with the large intestine primarily responsible for water absorption and the formation of feces. The digestive system is essential for nutrient absorption, waste elimination, and maintaining overall health. Dysfunction in the digestive system can lead to various disorders, including irritable bowel syndrome, inflammatory bowel disease, and celiac disease. Proper nutrition and a balanced diet can support the health of the digestive system.