tube (toob) a hollow cylindrical organ or instrument.
test tube,
auditory tube eustachian tube; the narrow channel connecting the middle ear and the nasopharynx. 
)
drainage tube a tube used in surgery to facilitate escape of fluids.
Durham's tube a jointed tracheotomy tube.
endobronchial tube a double-lumen tube inserted into the bronchus of one lung to deflate the other lung for anesthesia or thoracic surgery.
endotracheal tube an airway catheter inserted in the trachea in endotracheal intubation.
esophageal tube stomach t.
eustachian tube auditory t.
fallopian tube uterine t.
feeding tube one for introducing high-caloric fluids into the stomach.
Miller-Abbott tube a double-channel intestinal tube with an inflatable balloon at its distal end, for use in treatment of obstruction of the small intestine, and occasionally as a diagnostic aid.
nasogastric tube a soft tube to be inserted through a nostril and into the stomach, for instilling liquids or other substances, or for withdrawing gastric contents.
nasotracheal tube an endotracheal tube that passes through the nose.
neural tube the epithelial tube developed from the neural plate and forming the central nervous system of the embryo.
orotracheal tube an endotracheal tube that passes through the mouth. 
)
Orotracheal tube.
otopharyngeal tube , pharyngotympanic tube auditory t.
Sengstaken-Blakemore tube a multilumen tube used for tamponade of bleeding esophageal varices. 
)
Sengstaken-Blakemore tube for esophagogastric tamponade.
stomach tube a tube for feeding or for stomach irrigation; the most common kind is the nasogastric tube.
test tube a tube of thin glass, closed at one end; used in chemical tests and other laboratory procedures.
tracheal tube endotracheal t.
tracheostomy tube a curved endotracheal tube that is inserted into the trachea through a tracheostomy.
uterine tube fallopian tube; a slender tube extending from the uterus toward the ovary on the same side, for passage of oocytes to the cavity of the uterus and the usual site of fertilization. 
)
Uterine, or fallopian, tube.
Wangensteen tube a small nasogastric tube connected with a special suction apparatus to maintain gastric and duodenal decompression.
x-ray tube a vacuum tube used for the production of x-rays; when a suitable current is applied, high-speed electrons travel from the cathode to the anode, where they are suddenly arrested, giving rise to x-rays. 
)
Standard stationary anode x-ray tube; diagram in longitudinal section.
| test tube n. A clear, cylindrical glass tube usually open at one end and rounded at the other, used in laboratory experimentation. |
test tube,
a thin glass container with one open end and one closed end. It is used in many common laboratory procedures. Compare Veillon tube. See also tube.
test tube
a tube of thin glass, closed at one end; used in chemical tests and other laboratory procedures.
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