(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.
Prismatic
Definition:
(a.) Alt. of Prismatical
Example Sentences:
(1) The crystals have a rhombic prismatic habit and belong to the orthorhombic space group C222(1) with unit cell dimensions a = 130 A, b = 213 A and c = 216 A. X-ray structure determination is underway.
(2) The dipole can be accurately localised in the prismatic container.
(3) Nevertheless, the prismatic effects of intraocular lenses could account for the difficulties met in examination of peripheral fundus.
(4) Their cells were cuboid at fry stages and prismatic in juveniles and adults.
(5) The channel spaces were lined with a successive arrangement of belt-like intercrestal surfaces of prismatic enterocytes and variously sized processes on the crests.
(6) The thick prismatic plate crystals belong to space group P2(1)2(1)2 with unit cell dimensions of a = 177.42 A, b = 37.36 A and c = 73.30 A.
(7) In a previous study, it was found that oblique gaze and the prismatic effect inherent in dynamic aniseikonia combine to affect the ability to fixate centrally.
(8) Physico-chemical investigations of enamel from deciduous teeth of a small number of children with and without pre-natal fluoride supplementation (PNF) exhibited the following differences between the PNF and non-PNF enamel, with the former showing: (a) more homogeneous and less extensive patterns of acid-etching; (b) denser crystal populations in intra-prismatic regions; (c) larger prism dimensions; (d) greater total mineral density (wt%ash); (e) higher degree of crystallinity; (f) smaller a-axis dimensions; and (g) more fluoride and less carbonate contents.
(9) At later stages, the epithelium becomes highly prismatic and forms folds which are lined by a mesenchyme and blood vessels.
(10) Experimental determination of the strain distribution in prismatic, square cross-section bars of human compact bone in torsion disclosed nonclassical effects associated with the microstructure.
(11) It may be subdivided into a pair of copper atoms with histidine ligands whose ligating N-atoms (5 NE2 atoms and one ND1 atom) are arranged trigonal prismatic.
(12) The prismatic orientation, diameter, and density were found to be normal.
(13) Assuming the contact lens to remain stationary and the eye behind the lens to rotate, it is shown that the theoretical effect on ocular rotation of prismatic contact lenses is practically equal to their prismatic effect in air.
(14) All four patients completed therapy with almost total alleviation of symptoms and elimination of full-time prismatic correction.
(15) However, the larger apatite crystal size and loss of prismatic structure in crazed and cratered areas may partly explain previous observations of reduced rates of subsurface demineralization in lased enamel.
(16) Ultrastructurally, metachromatic leukodystrophy (MLD) is marked by characteristic features such as herringbone, prismatic and tufaceous patterns which are typically encountered within oligodendrocytes of the central nervous system (CNS) and in Schwann cells (PNS).
(17) Perceptual adaptation to a 30 or 45 degrees visual tilt was induced in human subjects by means of prismatic spectacles worn for 5-7 days.
(18) In most mitochondria the matrix contained a paracrystalline material which had a characteristic prismatic shape with a regular internal lattice structure.
(19) In 19 patients with normosensoric esotropia, the squint angles measured with the alternate cover test were compared with those after prolonged prismatic correction of the squint angle and with those after prolonged occlusion of one eye.
(20) The decline was a linear function of prismatic power.