Digestion: Digestion and Middle Intestines Essay

Submitted By yitzchakinayev
Words: 473
Pages: 2

Yitzchak Inayev Digestion

Digestion is the mechanical and chemical breaking down of food into smaller components that can absorbed into a blood stream. There are two types of digestion, mechanical and chemical digestion. Mechanical digestion is the physical break down of food into smaller pieces. An example of mechanical digestion is when you bite something with your teeth. It breaks the food down into smaller pieces when you chew it. Chemical digestion is the chemical break down of food into smaller pieces. An example is how enzymes break it down. The main organs of the digestive system are mouth, esophagus, stomach, small intestines, large intestines, rectum, and anus. The other organs are the salivary glands, gallbladder, liver, and pancreas. The mouth plays an important role in talking, facial expression, eating, drinking, and breathing. Both mechanical and chemical digestion begin in your mouth. It also plays a role in communication. The mouth is moist and is lined with a mucous membrane. The first space of the mouth is the mouth cavity. The esophagus is the transport of food from the mouth to the stomach. Mucous glands on the wall of the esophagus keep the food moist. The stomach stores and helps break down food. Food that has been broken down into small particles is most likely to be digested into the small intestines. Small molecules like alcohol are absorbed in the stomach, passing through the membrane and straight to the circulatory system. After being processed in the stomach, food is passed to the small intestines. As chyme leaves your stomach, it enters the first part of the small intestines, duodenum. The small intestines are responsible for taking the nutrients from the food and bringing water in the body. It also moves food through a…