Digestive (alimentary) system

Alimentary canal: tubular passage for digestion and absorption of food and the elimination of food residue; begins at the mouth and ends at the anus

Ingestion Taking substances like food or drink into the body through the mouth. Digestion the break down of large food pieces into small, water soluble molecules

Mouth: the opening through which an animal or human takes in food Ingestion, Digestion

Salivary Glands Digestion Glands that produce saliva, an important part of chemical digestion in the mouth enzyme - amylase Digestion

Esophagus: a muscular passage connecting the mouth with the stomach Food moves down the esophagus via peristalsis – muscles contract and relax

Liver: large gland responsible for: 1) the uptake, storage, and disposal of nutrients and toxins 2) the production of proteins and metabolism of substances produced by the body Digestion, Assimilation

Pancreas: a gland, near stomach; secretes a digestive fluid into the intestine through one or more ducts and also secretes the hormone insulin Digestion

Gall Bladder: Digestion stores Bile; a yellow-green liquid made in the liver used to break up fats Digestion

Stomach: a saclike enlargement of the alimentary canal; forming an organ for storing, diluting, and digesting food Digestion

Small intestine: lies between the stomach and colon, consists of duodenum, jejunum, and ileum, secretes digestive enzymes, and is the chief site of the absorption of digested nutrients Absorption Absorption – the movement of digested food molecules through the wall of the intestine into the blood

Duodenum:the first portion of the small intestine, from the stomach

Jejunum: middle portion of the small intestine; between the duodenum and the ileum

Ileum:the third and lowest division of the small intestine Assimilation – the movement of digested food molecules into the cell where they are used

Large intestine: terminal division of the vertebrate intestine that is wider and shorter than the small intestine; divided into cecum, colon, and rectum; reabsorption of water and the formation of feces Some Absorption

Colon: the part of the large intestine extending from the cecum to the rectum

Rectum: terminal part of the intestine from the colon to the anus

Anus: the opening at the lower end of the alimentary canal, through which the solid refuse of digestion is excreted

Egestion Passing food through the anus that has not been digested; Called faeces