Jejunostomy
A surgical operation to create an opening of the jejunum (a part of the small intestine).This can be done thru an abdominal incision or endoscopically. Usually refers to a procedure to establish enteral feeding but commonly done by a surgeon for one of many other reasons during a surgical procedure.
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- Jejunum
Part of the small intestine. It is half-way down the small intestine between its duodenum and ileum sections. The term “jejunum” derives from the Latin “jejunus,” which means “empty of food,” “meager,” or “hungry.” The ancient Greeks noticed at death that this part of the intestine was always empty of food. Hence, the name the […]
- Jellyfish itch
An intensely itchy rash due to contact with the tiny thimble jellyfish (Linuche unguiculata). These jellyfish are common between March and August in the waters off of Florida and in the Gulf of Mexico and the Caribbean Sea. There may be no adult jellyfish around as a warning. The jellyfish larvae look like mere specks […]
- Jellyfish sting
The injection into the skin of venom from the stinging unit (nematocyst) of the jellyfish. The jellyfish tentacles can extend for several feet and are lined with venom-filled cells (nematocysts). One tentacle may fire thousands of nematocysts into the skin on contact. The pain can be severe, particularly in the first hours after an attack, […]
- Jennerization
The production of immunity to a disease by inoculation of an attenuated form of the virus causing the disease. Named after the English physician Edward Jenner (1749-1823). Jenner exploited the folk knowledge that people who caught cowpox from their cows could not catch smallpox to develop a method of vaccination against smallpox using an attenuated […]
- Jenny Craig
Jenny Craig is a diet program that originated in Australia in 1983 in Australia and started U.S. operations in 1985. The program teaches participants how to eat the foods they want in small, frequent portions and to increase energy levels by increasing activity. At the final level, the program teaches clients how to build more […]