| MA | malignant arrhythmia; management and administration; mandelic acid; masseter; Master of Arts; matern... |
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| MJT | Mead Johnson tube |
| NET | nasoendotracheal tube; nerve excitability test; neuroectodermal tumor; neuroendocrine tumor; norepin... |
| NGT | nasogastric tube; nominal group technique; normal glucose tolerance |
| NTD | neural tube defect; nitroblue tetrazolium dye; noise tone difference; 5'-nucleotidase |
| dorsal plate of neural tube | The thin layer of the embryonic neural tube connecting the alar plate's dorsally. Synonym: dorsal plate of neural tube. (05 Mar 2000) |
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| dorsolateral plate of neural tube | The dorsal division of the lateral walls of the neural tube in the embryo; it gives rise to neurons relaying afferent impulses to higher centres; in the adult such neurons compose the sensory nuclei of the spinal cord and brainstem. Synonym: lamina alaris, alar plate of neural tube, dorsolateral plate of neural tube, lamina dorsalis, wing plate. (05 Mar 2000) |
| drainage tube | A tube introduced into a wound or cavity to facilitate removal of a fluid. (05 Mar 2000) |
| Durham's tube | A jointed tracheotomy tube. (05 Mar 2000) |
| infundibulum of uterine tube | The funnel-like expansion of the abdominal extremity of the uterine (fallopian) tube. Synonym: infundibulum tubae uterinae, infundibulum. (05 Mar 2000) |
| intratracheal tube | A flexible tube inserted nasally, orally, or through a tracheotomy into the trachea to provide an airway, as in tracheal intubation. Synonym: endotracheal tube, intratracheal tube. (05 Mar 2000) |
| isthmus of auditory tube | The narrowest portion of the auditory tube at the junction of the cartilaginous and bony portions. Synonym: isthmus tubae auditivae, isthmus of eustachian tube. (05 Mar 2000) |
| isthmus of eustachian tube | The narrowest portion of the auditory tube at the junction of the cartilaginous and bony portions. Synonym: isthmus tubae auditivae, isthmus of eustachian tube. (05 Mar 2000) |
| isthmus of uterine tube | The narrow portion of the uterine tube adjoining the uterus. Synonym: isthmus tubae uterinae. (05 Mar 2000) |
| O'Dwyer's tube | A metal tube formerly used for intubation of the larynx in diphtheria. (05 Mar 2000) |
| orotracheal tube | A tracheal tube inserted through the mouth. (05 Mar 2000) |
| otopharyngeal tube | A tube leading from the tympanic cavity to the nasopharynx; it consists of an osseous (posterolateral) portion at the tympanic end, and a fibrocartilaginous (anteromedial) portion at the pharyngeal end; where the two portions join, in the region of the sphenopetrosal fissure, is the narrowest portion of the tube (isthmus); the auditory tube enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears". Synonym: tuba auditiva, tuba auditoria, eustachian tube, guttural duct, otopharyngeal tube, otosalpinx, pharyngotympanic tube, salpinx, tuba acustica, tuba eustachiana, tuba eustachii. (05 Mar 2000) |
| test tube | A tube of thin glass closed at one end, used in the examination of urine and other chemical operations, for bacterial cultures, etc. (05 Mar 2000) |
| test-tube baby | Popular term for a baby born after uterine implantation of a maternal ovum fertilised in vitro. (05 Mar 2000) |
| ear tube surgery | The removal of fluid (often infected) from the middle ear space by creating a incision in the eardrum. Ear tubes may be placed to maintain chronic drainage for several months. Indicated in cases of chronic or recurrent otitis media. (27 Sep 1997) |