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nutrition
vocab
Term | Definition |
---|---|
Alimentary canal | the whole passage along which food passes through the body from mouth to anus. It includes the esophagus, stomach, and intestines. |
Anus | the opening at the end of the alimentary canal through which solid waste matter leaves the body |
Appendicitis | is an inflammation of the appendix, a finger-shaped pouch that projects from your colon on the lower right side of your abdomen. |
Appendix | is just a useless remnant from our evolutionary past |
Bile | a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder. |
Chemical digestion | involve breaking down the food into simpler nutrients that can be used by the cells. |
Chyme | he pulpy acidic fluid that passes from the stomach to the small intestine, consisting of gastric juices and partly digested food |
Colon | the number of the chapter and verse respectively in biblical references. |
Constipation | is infrequent bowel movements or difficult passage of stools that persists for several weeks or longer. |
Diarrhea | a condition in which feces are discharged from the bowels frequently and in a liquid form. |
Esophagus | the part of the alimentary canal that connects the throat to the stomach; the gullet. In humans and other vertebrates it is a muscular tube lined with mucous membrane. |
Feces | waste matter discharged from the bowels after food has been digested; excrement. |
Gall bladder | is a small hollow organ where bile is stored and concentrated before it is released into the small intestine. |
Gastric juice | a thin, clear, virtually colorless acidic fluid secreted by the stomach glands and active in promoting digestion. |
Hydrochloric acid | is a strong corrosive acid that is commonly used as a laboratory reagent. |
Large intestine | the cecum, colon, and rectum collectively. |
Lipases | is an enzyme that catalyzes the hydrolysis of fats. |
Liver | is an accessory digestive gland that produces bile, an alkaline compound which helps the breakdown of fat. Bile aids in digestion via the emulsification of lipids |
Mechanical digestion | involves physically breaking the food into smaller pieces. |
Mucus | a slimy substance, typically not miscible with water, secreted by mucous membranes and glands for lubrication, protection, etc. |
Oral cavity | is bounded above by the hard and soft palates and below by the tongue and by the mucous membrane connecting it with the inner part of the mandible. |
Pancreas | is a mixed gland, having both an endocrine and an exocrine function. As an endocrine gland, it secretes into the blood several important hormones, including insulin, glucagon, somatostatin, and pancreatic polypeptide. |
Pepsin | the chief digestive enzyme in the stomach, which breaks down proteins into polypeptides. |
Peristalsis | the involuntary constriction and relaxation of the muscles of the intestine or another canal, creating wavelike movements that push the contents of the canal forward. |
Ptyalin | a form of amylase found in the saliva of humans and some other animals. |
Rectum | the final section of the large intestine, terminating at the anus. |
Rennin | an enzyme secreted into the stomach of unweaned mammals, and in some lower animals and plants, causing the curdling of milk. |
Saliva | watery liquid secreted into the mouth by glands, providing lubrication for chewing and swallowing, and aiding digestion. |
Salivary glands | n mammals are exocrine glands that produce saliva through a system of ducts. |
Small intestine | the part of the intestine that runs between the stomach and the large intestine; the duodenum, jejunum, and ileum collectively. |
Stomach | the internal organ in which the major part of the digestion of food occurs, being (in humans and many mammals) a pear-shaped enlargement of the alimentary canal linking the esophagus to the small intestine. |
Ulcer | an open sore on an external or internal surface of the body, caused by a break in the skin or mucous membrane that fails to heal. |
Villi | an open sore on an external or internal surface of the body, caused by a break in the skin or mucous membrane that fails to heal. |