The Digestive Process (1) - The four basic stages of Ingestion, Digestion, Absorption-Assimilation, and Elimination. Part of a series of pages about the Digestive System, including the organs of the digestive system, and the processes by which foodstuufs are broken-down and processed by the human body.
Digestion refers to the process that breaks foods down into their constituent carbohydrates, proteins and fats, and then further deconstructs each nutrient into its component molecules. Muscles lining the walls of the digestive system contract to mix food with enzymes while pushing it through the digestive system.
Digestion is the process in which the body breaks down food into molecules that can be used for nourishment. The stomach is not the only organ involved in the digestion process. A series of organs comprise the human digestive tract, including the mouth, esophagus, stomach, small intestines, liver and large intestine.
Step 7: The small intestine is the real hero of the digestive system. The small intestine is a tube that is about 18 feet long! This is where the real digestion takes place. As the food passes through, it is mixed with the new chemicals, and is finally digested enough to be put to use by the body.
The first step of the digestive process occurs before food even enters your mouth. Once you smell or see food that you plan to eat, you begin to salivate, and the digestive process begins. Once food enters your mouth, your teeth and tongue begin breaking it apart; this second step is a form of mechanical digestion.
A step-by-step look at how your digestive system works, from top to bottom.
Your digestive system is essentially one long tube that starts at your mouth and ends at your anus. Organs such as the stomach and large and small intestines digest and process the food you eat. Organs outside the digestive tract also play a part in digestion. For example, the salivary glands ...
Your digestive system is uniquely designed to turn the food you eat into nutrients, which the body uses for energy, growth and cell repair. Here's how it works. The mouth is the beginning of the ...
Your digestive system breaks nutrients into parts that are small enough for your body to absorb. How does my digestive system work? Each part of your digestive system helps to move food and liquid through your GI tract, break food and liquid into smaller parts, or both.
The digestive system ingests and digests food, absorbs released nutrients, and excretes food components that are indigestible. The six activities involved in this process are ingestion, motility, mechanical digestion, chemical digestion, absorption, and defecation. These processes are regulated by neural and hormonal mechanisms. Self Check