(n.) An excrescent appendage, as, a wart or tumor; anything growing out unnaturally from anything else; a preternatural or morbid development; hence, a troublesome superfluity; an incumbrance; as, an excrescence on the body, or on a plant.
Example Sentences:
(1) The patient, a 12 year-old boy, showed a soft white yellowish mycotic excrescence with clear borders which had followed the introduction of a small piece of straw into the cornea.
(2) Pleomorphism and irregular size of endothelial cells associated with excrescences were noted in case 3 and 4.
(3) 3-D-reconstructions of serial sections of human embryos show that the margin of the lip furrow band is irregular and consists of an abundance of individual epithelial excrescences.
(4) At higher magnification the synoviocytes showed evidence of considerable surface activity (smooth granules, larger cauliflower-like excrescences, thin lamelliform filopodia).
(5) The histopathologic and ultrastructural findings of globular excrescences of the peripapillary region of the optic nerve associated with retinitis pigmentosa were described in a 22-year-old patient who died in a car accident.
(6) Our primarily noninvasive cells form a multilayered base of rounded cells covered with various excrescences and numerous attached dividing and giant cells.
(7) The occurrence of excrescences on proximal dendrites was a characteristic feature of all mossy cells.
(8) These alterations were: (i) a fast transition of rough to smooth morphology macroscopically, and (ii) fading of the cell borders concomitant with the disappearance of cell-membrane excrescences, as seen by scanning electron microscopy.
(9) The operative procedures involved decompression of peripheral nerves in the foot and ankle, consisting of release of soft tissues in the tarsal tunnel and foot or removal of abnormal bony excrescences that were irritating these nerves.
(10) A circular zone devoid of identifiable connective tissue is present at the center of the filiform excrescences.
(11) Free-margin excrescences are the least numerous and occur more frequently in persons older than 40 years.
(12) Peritoneal washings contained malignant cells in 14 of 32 patients (not recorded or obtained in 49), cyst rupture occurred in 25%, surface excrescences in 40%, and adhesions in 46%.
(13) However, thickened cribriform peritoneum usually was not endometriotic (9% of n = 11) and vesicular excrescences were, in every case, reactions to oil-based salpingographic medium (n = 5).
(14) The sympathetic trunk itself (ganglia and cord) was affected only by osteophytes of vertebrae at the lowest thoracic levels; however, bony excrescences due to costovertebral joint arthritis were frequently found impinging on the sympathetic trunk and its rami communicantes at similar frequencies on both sides.
(15) Membrane-delimited vacuoles, lipid droplets and cytoplasmic excrescences appeared in myelinating Schwann cells at 24 hr; demyelinating axons appeared at 48 hr of tellurium exposure.
(16) Mossy fiber endings were identified by their large size and their numerous clear synaptic vesicles with some dense-core vesicles intermingled, and were observed to form synaptic contacts on the large spines or excrescences.
(17) One category, termed short-shaft pyramidal neurons, is characterized by short apical shafts, a large number of thorny excrescences, and densely branched apical and basilar trees.
(18) A calcific eyelid excrescence removed from the patient, studied by x-ray diffraction, was found to consist of crystals of hydroxyapatite.
(19) Comparison with phase contrast light microscopy shows that the fine excrescencies cannot be resolved and therefore lead "artificially" to a more confined aspect of the nucleoid.
(20) A few small excrescences are present on the proximal dendrites.
Extrusion
Definition:
(n.) The act of thrusting or pushing out; a driving out; expulsion.
Example Sentences:
(1) The extrusion of granules into the intercellular space via exocytosis is frequently observed.
(2) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
(3) The larger accumulation of Mn2+ than of Sr2+ in Saccharomyces cerevisiae is ascribed to the operation of a specific extrusion pump, presumably a Ca2+ pump, which has a higher affinity for Sr2+ than for Mn2+.
(4) As with alloplastic orbital implant extrusions in enucleated sockets, autogeneous dermis fat grafts can be useful in managing extrusions in previously eviscerated sockets.
(5) In contrast to sodium nitroprusside, ANP-(5-28) induced a dose-dependent cyclic GMP extrusion from the tissue into the medium.
(6) Possible mesial root extrusion was found in 60.0% of the uprighted molars.
(7) In another experiment the effect of cooking-extrusion on lupine flour (L. albus) was investigated and the chemical composition, protein efficiency ratio, methionine supplementation and digestibility of the protein were measured.
(8) If so, the delta psi would be a Donnan potential that in active cells is offset by energy-dependent H+ extrusion.
(9) Thus intracellular free calcium may be regulated by a combination of energy-requiring extrusion and passive influx through receptor-operated calcium channels located in the invaginated vesicular membranes, with short diffusion distances to the actin-myosin filaments in the cytoplasm.
(10) Two of the six cases showed pseudoinvasion of the appendix and in a further case the appendix had perforated with extrusion of a misplaced neoplasm.
(11) The recovery of lipids, especially of cholesterol and cholesterol ester, is improved if the emulsion is sonicated before extrusion through filters.
(12) Membranes were isolated from the cyanobacterium Anacystis nidulans by French press extrusion of lysozyme-treated cells.
(13) The velocity of Ca2+ extrusion oscillated with a time course similar to that of [Ca2+]i.
(14) 14C-Fucose was found in the Golgi apparatus, 2 minutes after injection into the animal, while within 20 minutes it had reached the surface membranes before extrusion.
(15) Deacetylated gellan gum (Gelrite) was used to produce a bead formulation containing sulphamethizole by a hot extrusion process into chilled ethylacetate.
(16) The Authors describe the classification of the malocclusion by Angle, and considerate one open byte case, may be caused by extrusion of first lower right molar, describing orthodontic treatment for his correction.
(17) Proton extrusion at normal pH (pH 6) was significantly inhibited at 39 degrees C only in cells lacking sphingolipid.
(18) The ascorbate oxidation was coupled to the uphill Na+ extrusion which was stimulated by CCCP and a penetrating weak base, diethylamine, as well as by valinomycin with or without diethylamine.
(19) Our findings suggest that immune elimination of schistosomula in mice immunized with irradiated cercariae is partly or largely effected by a process of alveolar extrusion of viable parasites during their lung migration.
(20) We tested the hypothesis that quis-induced intracellular Ca2+ release and extrusion of Ca2+ from the cells contributed to the overshoots.