| 单词 | epithelium |
| 释义 | epithelium noun[CorU] medicalspecializeduk/ˌep.ɪˈθiː.li.əm/us/ˌep.ɪˈθiː.li.əm/pluralepitheliauk/ˌep.ɪˈθiː.li.ə/us/ˌep.ɪˈθiː.li.ə/alayerofcellscoveringall thesurfacesof thebodyexcept theinteriorofbloodandlymphvessels 上皮，上皮组织Substances & structures in the body
Examplesofepitheliumepithelium Owing to their lower affinity for theepithelium, spermatozoa that become capacitated are released from the storage site. From theCambridge English Corpus The apical lamellae and basal invaginations are characteristic features of trematode excretoryepitheliumand are believed to be concerned with its absorptive capacity. From theCambridge English Corpus The cornea is frequently involved, with 353 in this series having multiple small dendritic or stellate lesions and 294 granular deposits under the cornealepithelium. From theCambridge English Corpus However, the retina shrank only by about 1% relative to the pigmentepithelium, so this does not seem to be the case. From theCambridge English Corpus The main collecting tubes were connected to the excretory bladderepitheliumby ring-shaped septate junctions (figs 10, 11). From theCambridge English Corpus Some cells with a morphology very similar to macrophages were found in theepitheliumof seminiferous tubules of immunodeficient mice. From theCambridge English Corpus The colour intensity of the immunohistochemical reaction products is also much higher in tumour cells compared with normalepithelium. From theCambridge English Corpus Later these cells progressively flatten, expand and eventually fuse, forming a thin syncytium underlying the primitiveepithelium(fig. 3b). From theCambridge English Corpus The retinal pigmentepitheliumcytoplasm showed dense bodies and clumps of lipids. From theCambridge English Corpus Small proline-rich proteins are cross-bridging proteins in the cornified cell envelopes of stratified squamous epithelia. From theCambridge English Corpus In relation to goblet cell metaplasia of the bile ductepithelium, the bile contains a high content of mucous secretion. From theCambridge English Corpus Like us, the latter authors asserted that the primitiveepitheliumin schistosomes is embryo derived. From theCambridge English Corpus Surprisingly, however, there was no other epithelial abnormality except in the vicinity of the worm where theepitheliumwas flattened. From theCambridge English Corpus In both species the luminal surface of the excretory bladderepitheliumis increased by lamellae, and the basal plasma membrane forms invaginations. From theCambridge English Corpus This arrangement may resemble superficially a sunkenepithelium, but careful observation at ultrastructural level reveals that these structures are completely different. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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