(n.) An axis to which a carpel of a compound pistil may be attached, as in the case of the geranium; or which is left when a pod opens.
(n.) A columnlike axis in the capsules of mosses.
(n.) A term applied to various columnlike parts; as, the columella, or epipterygoid bone, in the skull of many lizards; the columella of the ear, the bony or cartilaginous rod connecting the tympanic membrane with the internal ear.
(n.) The upright pillar in the axis of most univalve shells.
(n.) The central pillar or axis of the calicles of certain corals.
Example Sentences:
(1) Two different prototypes of columella materials made from aluminum oxide ceramics were newly designed by the author for ossicular reconstruction.
(2) In the infant and small child, when most repairs are done, nose tip projection is due more to the alar dome component than to the columella.
(3) Definitive lip and columella surgery is facilitated.
(4) The infection rate for P. columella from MI, was 50% and for L. gedrosiana was 32.5%, whereas L. natalensis, S. elodes and S. attenuata were refractory.
(5) The most important reason for the resorption are mechanical factors; this has been shown by comparing the load of implanted tissue on the columella and on the dorsum of the nose.
(6) Vibration measurements were made at a number of positions near the proximal (basal) end of the basilar membrane, and on the columella footplate, of Caiman crocodilus using a capacitive probe.
(7) In the same manner, Denonvilliers' flap may be employed to restore contour of the nasal ala, since its scar sequel is very acceptable, and Dieffenbach's flap may be used to reconstruct the columella.
(8) Newborns have been examined with an otoscope and two different kinds of nasal lesions have been considered: (1) pyramid deformation with septum dislocation and columella deviation; (2) deviation and subluxation of the septum.
(9) Data regarding the 2,341 discovery sites of L. columella recorded by collectors during surveys are analysed.
(10) Where the inferior view shows a "tent tip" skyline, lateral crus advancement is required and can be achieved in asynchronous repairs by Pigott alar leapfrog at primary repair or by Potter V-Y advancement at the time of forked flap columella lengthening.
(11) Paucity of lobular cartilage; the flat dorsum; short columella; wide flaring nares; and skin that tends to keloid formation have led many surgeons to attempt radical surgical techniques to obtain rather limited results.
(12) The value of the modified Millard method in the management of unilateral nose deformities and the author's own approach to primary columella elongation in bilateral cleft are presented.
(13) Over-lengthening the columella at the expense of alar dome projection results in an unaesthetic nose at maturity.
(14) A comparison of three types of columella currently used--bone, ceramic, and polyethylene--is presented.
(15) In most patients, effective treatment was to repack the nose and cauterize a bleeding site, or to suture an open area either in the incision or at the columella-septum junction.
(16) The results of the study would suggest that the median forehead flap can be elevated without incorporating the supratrochlear vessels, but the flap design should be reserved for those clinical situations where the pedicle must be extensively mobilized, e.g., reconstruction of the nasal tip and columella and the presence of a low-lying frontal hairline.
(17) There was a thick columella and an elongated continuous nasal septum separating the nasal cavities.
(18) Philtrum length, philtrum shape, philtrum depth, nasolabial triangular area, vermilion thickness, Cupid's bow peak, horizontal upper lip groove, vermilion border, alar size, depth of alar groove, nasal deviation, nostril shape, nasal tip, columella height, sill shape, columella width, and facial balance of the anterior, profile, and caudal views are used as aesthetic checkpoints for the results of a cleft lip operation.
(19) The surgical technique used enables correction in a single operation through suture of the lateral portions at the midline and elevation of the bifurcated flap of the prolabium to form the columella and the nasal floor.
(20) The lengthening and lowering of the short and sometimes retracted columella and narrowing of the alar bases is performed by making a columellar splitting incision and extending it along the alar sills.
Columnar
Definition:
(a.) Formed in columns; having the form of a column or columns; like the shaft of a column.
Example Sentences:
(1) In normal seminal vesicle, the reaction product was apparently more abundant in columnar and basal cells than in other cell types.
(2) The observed staining indicated that the epithelium of the external auditory meatus has a pattern of keratin expression typical of epidermis in general and the epithelium of the middle ear resembles simple columnar epithelia.
(3) Results of the present study show that epithelial cells of ciliated columnar type covering vocal cords change remarkably to nonciliated squamous cells between prenatal and postnatal stages.
(4) A monoclonal antibody specific for columnar epithelium (RGE 53) gave a positive reaction in endocervical columnar cells and in some immature metaplastic cells but was negative in subcolumnar reserve cells, squamous (metaplastic) cells, dysplastic cells, and most cases of carcinoma in situ.
(5) Histochemical and electron-microscopic observations on a 30-month-old child with Hurler syndrome showed marked irregularities in chondrocyte orientation within the growth plate, along with disruption of the normal columnar architecture.
(6) These patterns did not parallel the increase in microvillar height and number and basolateral interdigitations of the surface columnar cells, the structural correlates of lactase, and sodium-potassium-stimulated adenosine triphosphatase, respectively.
(7) There was no evidence of a "columnar" or "blob" pattern of any binding site within any of the laminae.
(8) The stratum superficiale consists during this phase of tall columnar cells.
(9) There was gradual regeneration of epithelium which showed slow maturation from flat non-ciliated epithelium to partially cuboidal and columnar epithelium with some cilia showing early differentiation to respiratory epithelium.
(10) The MNT was composed mainly of two cell types: small immature neuroblast-like cells and large columnar or cuboidal epithelial-like cells with or without melanin granules.
(11) The binding of 5 lectins (wheat germ, Dolichos bifluros, peanut, soybean, and Ulex europeus) was found to be independent of the stage of differentiation; "pre-differentiated" columnar cells which had prominent microvilli and no or few mucous secretory granules had identical staining patterns as well-differentiated goblet cells with large numbers of secretory granules.
(12) Photograph: Alamy The Devils Postpile, near Mammoth Lakes on the east side of Yosemite, looks as if it might have been created by some satanic sculptor, but really it's just one of the world's best examples of columnar basalt, a similar geological feature to the Giants Causeway in Northern Ireland.
(13) Barrett's esophagus is a condition in which the stratified squamous epithelium of the esophagus is replaced by metaplastic columnar epithelium that predisposes to the development of esophageal adenocarcinoma.
(14) There is a restructuring of the terminal vascular network of the pre-existing columnar epithelium in noninvasive cervical neoplasia which is caused by compression of the capillaries by the epithelial proliferation.
(15) Endometrial cells in suspension were stained with propidium iodide and a monoclonal antibody against a cytokeratin intermediate filament protein specific for glandular and columnar cells (RGE 53).
(16) The 9k-Da CaBP mRNA was observed mainly in the cytoplasm of the columnar cells and less frequently in the nucleus.
(17) Columnar epithelium in the nasal mucosa showed TK staining in all layers, KL1 staining on the apical side of epithelial cells and trace or negative staining in basal layer cells.
(18) There is no satisfactory biomarker yet available for predicting the likelihood of premalignant changes or carcinoma developing in Barrett's or columnar lined oesophagus.
(19) None of the control samples contained columnar cells and only 1 of 200 control samples contained metaplastic cells.
(20) The tumors were superficial, solitary masses consisting of cuboidal to columnar cells in tubuloglandular arrangement.