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  1. Human digestive system | Description, Parts, & Functions | Britannica

    Nov 27, 2025 · The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into …

  2. Defecation | Anatomy, Physiology & Benefits | Britannica

    Nov 12, 2025 · The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into …

  3. Fish - Digestion, Anatomy, Nutrition | Britannica

    Oct 28, 2025 · Fish - Digestion, Anatomy, Nutrition: The structure of a fish's digestive system consists of the mouth, teeth and gill rakers, esophagus, stomach, pyloric ceca, pancreas, liver, …

  4. Human digestive system - Proteins, Enzymes, Absorption | Britannica

    Human digestive system - Proteins, Enzymes, Absorption: The digestion of protein entails breaking the complex molecule first into peptides, each having a number of amino acids, and …

  5. Description, Anatomy, Processes, & Enzymes - Britannica

    This article summarizes the chemical actions of the digestive process. For details on the anatomy and physiology for specific digestive systems, see digestive system, human, and digestive …

  6. Human Digestive System and the Intestines Animated | Britannica

    Most of the digestive process occurs in the small intestine, which channels water to the lymphatic system and nutrients to the circulatory system. The large intestine absorbs any remaining water.

  7. Human digestive system - Organs, Processes, Functions | Britannica

    Human digestive system - Organs, Processes, Functions: The liver lies under the lower right rib cage and occupies much of the upper right quadrant of the abdomen, with a portion extending …

  8. digestive system - Kids | Britannica Kids | Homework Help

    This process is called digestion. The different organs, or body parts, that are involved in this process make up the digestive system. In humans the different parts of the digestive system …

  9. Human digestive system - Secretions, Enzymes, Absorption

    Nov 27, 2025 · Human digestive system - Secretions, Enzymes, Absorption: There are many sources of digestive secretions into the small intestine. Secretions into the small intestine are …

  10. digestion summary | Britannica

    digestion, Process of dissolving and chemically converting food for absorption by cells. In the mouth, food is chewed, mixed with saliva, which begins to break down starches, and kneaded …