Gastrointestinal tract

"The human gastrointestinal tract is the stomach and intestine, sometimes including all the structures from the mouth to the anus. (The ""digestive system"" is a broader term that includes other structures, including the accessory organs of digestion). In an adult male human, the gastrointestinal (GI) tract is 5 metres (20 ft) long in a live subject, or up to 9 metres (30 ft) without the effect of muscle tone, and consists of the upper and lower GI tracts. The tract may also be divided into foregut, midgut, and hindgut, reflecting the embryological origin of each segment of the tract. The GI tract always releases hormones to help regulate the digestion process. These hormones, including gastrin, secretin, cholecystokinin, and grehlin, are mediated through either intracrine or autocrine mechanisms, indicating that the cells releasing these hormones are conserved structures throughout evolution."

Anorectal

"Anorectal anomalies are medical problems affecting the structure of the anus and rectum. A person with an anorectal problem would have some sort of deformative feature of the anus or .....

Antacids

An antacid is a substance which neutralizes stomach acidity. Antacids either directly neutralize acidity, increasing the pH, or reversibly reduce or block the secretion of acid by gastric cells to .....

Anti Diarrhoeals

"An anti-diarrhoeal drug (or anti-diarrheal drug in American English) is any medication which provides symptomatic relief for diarrhoea. There are several approaches to the treatment of diarrhea and therefore different .....

Anti Spasmodic

An anti spasmodic is a drug or a herb that suppresses muscle spasms. Anti-spasmodic drugs can help some people with the pain and other symptoms caused by irritable bowel .....

Anti Ulcer

Anti-ulcer drugs are a class of drugs, exclusive of the antibacterial agents, used to treat ulcers in the stomach and the upper part of the small intestine. The Anti Ulcer .....

Colon & Rectum

"Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes .....

Enzymes and Carminatives

Enzymes are large biological molecules responsible for the thousands of chemical interconversions that sustain life. They are highly selective catalysts, greatly accelerating both the rate and specificity of metabolic reactions, .....

H2 Blockers

"H2 blockers, also called H2-receptor antagonists, are medicines that reduce the amount of acid the stomach produces by blocking one important producer of acid: histamine2. A cell in the stomach, .....

Laxatives Purgatives

Laxatives Purgatives are foods, compounds or drugs taken to loosen the stool, most often taken to treat constipation. Certain stimulant, lubricant and saline laxatives are used to evacuate the colon .....

Probiotics

Probiotic organisms are live microorganisms that are thought to be beneficial to the host organism. According to the currently adopted definition by FAO/WHO, probiotics are: "Live microorganisms which when administered .....