单词 | microtrabecular |
释义 | microtrabecularadj. 1. Cell Biology. Designating or belonging to a (real or artefactual) three-dimensional network of fine strands of cytoplasm observed in cells by means of high voltage electron microscopy. ΘΚΠ the world > life > biology > substance > proteins > [adjective] proteinaceous1844 proteinous1844 proteinic1876 native1931 glycosyl1945 glycosylated1945 microtrabecular1976 polytopic1980 1976 J. J. Wolosewick & K. R. Porter in Amer. Jrnl. Anat. 147 307/2 Upon closer inspection, this three-dimensional lattice resembles the trabecular structure of spongy bone. This microscopic trabecular structure, perhaps better referred to as a microtrabecular system (the strands being the trabeculae) or three-dimensional lattice,..is a constant feature in all parts of the cytoplasm. 1980 Sci. Amer. Apr. 135/2 In the first model,..materials are moved passively between the microtrabecular elements of the axoplasm. 1984 E. Holtzman & A. B. Novikoff Cells & Organelles (ed. 3) ii. xi. 289 The overall effect is the integration of the entire cytoplasm into a loosely knit microtrabecular network capable of rapid change and rapid attachment and detachment of the structures linked in it. 1989 Biochimica et Biophysica Acta 999 69/2 Clegg's model should be expanded to include microtubules in addition to actin filaments as interacting components of the microtrabecular lattice. 1990 Nous 24 633 The debate in cell biology over the existence of the microtrabecular lattice. 2. Pathology. Of, relating to, or designating microscopic or very small trabeculae, esp. of bone. ΚΠ 1978 Jrnl. Bone & Joint Surg. 60A 384 We think that the sequence of events is as follows: implantation of the tibial component with medial or lateral tilt; lack of firm skeletal stabilization; continual microtrabecular fractures; [etc.]. 1990 Jrnl. Arthroplasty 5 307 Multiple microtrabecular fractures with healing form a new supportive ‘subchondral bone plate’. 1991 Hepatology 14 473 Morphometrical analyses revealed that the mean cell size and nucleocytoplasmic ratio were most useful for distinguishing well-differentiated, microtrabecular hepatocellular carcinoma from cirrhosis. 1999 Jrnl. Anat. 195 101 There were occasional sites of microtrabecular bone formation between the trabeculae of the underlying cancellous bone, which were not seen in the other groups, and more numerous osteoclast resorption pits. This entry has been updated (OED Third Edition, December 2001; most recently modified version published online March 2022). < adj.1976 |
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