| 词汇 | example_english_epithelium |
| 释义 | Examples of epitheliumThese 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. Owing to their lower affinity for the epithelium, spermatozoa that become capacitated are released from the storage site. The apical lamellae and basal invaginations are characteristic features of trematode excretory epithelium and are believed to be concerned with its absorptive capacity. The cornea is frequently involved, with 353 in this series having multiple small dendritic or stellate lesions and 294 granular deposits under the corneal epithelium. However, the retina shrank only by about 1% relative to the pigment epithelium, so this does not seem to be the case. The main collecting tubes were connected to the excretory bladder epithelium by ring-shaped septate junctions (figs 10, 11). Some cells with a morphology very similar to macrophages were found in the epithelium of seminiferous tubules of immunodeficient mice. The colour intensity of the immunohistochemical reaction products is also much higher in tumour cells compared with normal epithelium. Later these cells progressively flatten, expand and eventually fuse, forming a thin syncytium underlying the primitive epithelium (fig. 3b). The retinal pigment epithelium cytoplasm showed dense bodies and clumps of lipids. Small proline-rich proteins are cross-bridging proteins in the cornified cell envelopes of stratified squamous epithelia. In relation to goblet cell metaplasia of the bile duct epithelium, the bile contains a high content of mucous secretion. Like us, the latter authors asserted that the primitive epithelium in schistosomes is embryo derived. Surprisingly, however, there was no other epithelial abnormality except in the vicinity of the worm where the epithelium was flattened. In both species the luminal surface of the excretory bladder epithelium is increased by lamellae, and the basal plasma membrane forms invaginations. This arrangement may resemble superficially a sunken epithelium, but careful observation at ultrastructural level reveals that these structures are completely different. When the epithelium eventually desquamates, eggs pass out with the faeces into the environment. All observers agree that adult worms are typically found in the epithelium of the caecum or colon. Our results demonstrate that hypotaurine and taurine are secreted by oviduct epithelium, and synthesised by tubal cells via the cysteine sulfinic acid pathway. The epithelium is converted from a non-receptive state to a receptive state by the action of steroids. Most prostate cancer develops from a background of proliferative but seemingly benign epithelium. The first is that incessant ovulation with repeated trauma to the epithelium or repeated mitotic stimulation of the epithelium is carcinogenic (23;24). In some eyes the pigment epithelium adhered too tightly to the retina to be removed without damage. A number of specific transport proteins are located in biliary epithelia, including anion exchangers and water transporters (for a review see ref. 41). The mechanism responsible for the destruction of the secretory epithelium is apoptosis, a form of programmed cell death that occurs in all multicellular animals. 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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