| DIM | divalent ion metabolism; medium infective dose [Lat. dosis infectionis media] |
|---|---|
| FIM | field ion microscopy; functional independence measure |
| FU | fecal urobilinogen; fetal urobilinogen; fluorouracil; follow-up; flux unit [ion]; fractional urinaly... |
| H+ | hydrogen ion |
| [H+] | hydrogen ion concentration |
| ampulla of uterine tube | The wide portion of the uterine (fallopian) tube near the fimbriated extremity; it has a complexly folded mucosa with a columnar epithelium of mostly ciliated cells between which are secretory cells. Synonym: ampulla tubae uterinae. (05 Mar 2000) |
|---|---|
| ampullary folds of uterine tube | One of the folds of mucous membrane at the fimbriated extremity of the uterine tube. Synonym: plicae ampullares tubae uterinae. (05 Mar 2000) |
| auditory 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) |
| Babcock tube | A tube in which milk, after treatment with sulfuric acid, is centrifuged and its fat content then determined in a graduated neck. (05 Mar 2000) |
| basal lamina of neural tube | The ventral division of the lateral walls of the neural tube in the embryo; it contains neuroblasts giving rise to somatic and visceral motor neurons. Synonym: lamina basalis, basal plate of neural tube, lamina ventralis, ventral plate of neural tube. (05 Mar 2000) |
| basal plate of neural tube | The ventral division of the lateral walls of the neural tube in the embryo; it contains neuroblasts giving rise to somatic and visceral motor neurons. Synonym: lamina basalis, basal plate of neural tube, lamina ventralis, ventral plate of neural tube. (05 Mar 2000) |
| bony part of auditory tube | The portion of the auditory tube that passes from the tympanic cavity anteromedially through the saemicanal for auditory tube. Synonym: pars ossea tubae auditivae. (05 Mar 2000) |
| Bouchut's tube | A short cylindrical tube used in intubation of the larynx. (05 Mar 2000) |
| Bourdon tube | A curved and partially flattened tube that tends to straighten out in proportion to internal pressure; used as a transducer to move the pointer of an aneroid manometer. (05 Mar 2000) |
| buccal tube | <dentistry> A small metal part that is welded on the outside of a molar bank. The buccal tube contains a slots to hold archwires, lip bumpers, face-bows and other things your orthodontist uses to move your teeth. (08 Jan 1998) |
| calyx-tube | A tube formed by fusion or cohesion of sepals. Compare: hypanthium. (09 Oct 1997) |
| Cantor tube | A long, single-lumen intestinal tube with a sealed rubber bag tip; mercury is injected into the rubber bag with a needle and syringe. (05 Mar 2000) |
| cardiac tube | The primitive tubular heart in the embryo, before its division into chambers. (05 Mar 2000) |
| Carlen's tube | A double lumen flexible endobronchial tube used for bronchospirometry, for isolation of one lung to prevent contamination or secretions from the contralateral lung, or for ventilation of one lung. (05 Mar 2000) |
| vacuum tube | A glass tube from which the air has been removed, containing two or more electrodes, between which passes an electrical current or spark; used in the production of X-rays, or to control circuits. Previously in wide use, the vacuum tube has been supplanted by transistors in electronic circuits. (05 Mar 2000) |