Esophagus – function, disorders and problems

Definition of Esophagus The muscular tube that extends from the back of the THROAT to the top of the STOMACH. From 10 to 12 inches long, the esophagus carries ingested food and fluids to the stomach to begin the process of digestion. As the esophagus leaves the throat its MUSCLE tissue is primarily striated (voluntary); as the esophagus enters the […]

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Bile Ducts – definition and function

Bile Ducts Definition Channels that carry BILE from LIVER to the GALLBLADDER and from the gallbladder to the DUODENUM (first segment of the SMALL INTESTINE). The intrahepatic ducts are within the structure of the liver. They collect bile the liver secretes and transport it from the liver. The extrahepatic ducts are outside the liver and route bile to the gallbladder and duodenum. They are the […]

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Flatulence – definition and causes

Flatulence Definition Flatulence – the clinical term for intestinal gas. Flatulence indicates undigested food particles are present in the COLON. Consuming large quantities of indigestible fiber (such as with beans and other legumes), eating too fast to thoroughly chew food before swallowing, and eating a larger quantity of food than the gastrointestinal tract can accommodate are […]

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Bilirubin – definition, values / levels

Bilirubin Definition A metabolic product of ERYTHROCYTE (red BLOOD cell) heme that is a key component of HEMOGLOBIN. Bilirubin exists in two forms, conjugated (also called direct), which is water soluble, and unconjugated (also called indirect or free), which is fat soluble. The amounts and ratios of bilirubin present in the BLOOD help doctors assess LIVER and GALLBLADDERfunctions. Normal Blood Bilirubin Values unconjugated […]

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Gallbladder – Definition and Function

Definition Gallbladder is a small, muscular pouch on the underside of the LIVER that concentrates and stores BILE. Function Gallbladder absorbs about 90 percent of the water in the bile that arrives from the liver, creating concentrated, potent bile. Fats and proteins in the chyme (partly digested food) the STOMACH sends to the DUODENUM trigger the duodenum to release the digestive […]

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Borborygmus definition

Borborygmus definition Borborygmus – the growling and rumbling sound of gas moving through the gastrointestinal tract during digestion. Borborygmus, sometimes referred to in the plural, borborygmi, indicates normal function of the gastrointestinal system. The sounds originate with the STOMACH and continue through the SMALL INTESTINE and large intestine. Excessive rumblings may indicate incomplete digestion such as may result from eating […]

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Ileum – Function, Definition and Conditions

Definition and Function Of Ileum The third, final, and longest segment of the SMALL INTESTINE. About 10 feet in length, the ileum extends from the JEJUNUM to the CECUM. The ileum absorbs fats and fat-soluble vitamins as well as other remaining nutrients from the digestive content, which it then passes through the ileocecal valve into the cecum (the first segment of […]

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Bowel Movement – what is and definition

Bowel Movement Definition Bowel Movement is the passage of solid digestive waste (called feces or stool) from the body through the ANUS. The frequency, appearance, and nature of bowel movements are highly variable. Food typically travels through the gastrointestinal system in 18 to 36 hours, so most people have bowel movements daily or every other day. However, […]

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Intestinal Adhesions – Symptoms, Causes and Treatment

Definition Areas of tissue that fuse together when SCAR tissue extends into normal tissue. Intestinal adhesions are most common in people who have had abdominal surgery (particularly multiple operations) though also may form with ENDOMETRIOSIS, INFLAMMATORY BOWEL DISEASE (IBD), CELIAC DISEASE, and other circumstances in which there is damage to the abdominal tissues that generates scar tissue. Symptoms and Treatment […]

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Bowel Sounds – Definition, Types

Bowel Sounds Definition and Types The noises of the gastrointestinal tract. Listening to sounds through a stethoscope (AUSCULTATION) provides important clues about the function of the gastrointestinal tract. Normal noises vary in tone and loudness according to the activity of the bowel though follow characteristic patterns the doctor can identify. Excessive noises often accompany excessive bowel […]

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