| 词汇 | lamina |
| 释义 | lamina noun[ C ] specializeduk /ˈlæm.ɪ.nə/ us /ˈlæm.ə.nə/plurallaminaeuk /ˈlæm.ɪ.niː/ biology a layer or thin sheet of tissue薄片;薄层 medical one of two curved parts at the back of a vertebra (= one of the bones in the back)椎板 biology the flat part of a leaf or petal叶片 Parts of plants axil bark bilobed blade bulb caning cascara sagrada corolla endodermis inflorescence knot pistil rosella seed coat seed pod sessile shaw sting taproot tubule You can also find related words, phrases, and synonyms in the topics: Substances & structures in the body Bone structures Examples of laminalamina This is supported by the isolated, periclinal nature, the absence of cross-stratification or visible pinching and swelling of laminae across the waves. They may be a reaction to damage of the internal elastic lamina, caused by intraluminal blood pressure in foetal life. The internal and external elastic laminae are thick concentric elastic-fibre layers that separate the intima and media, and the media and adventitia, respectively. The primary pathology seems to be centered on the internal elastic lamina and this may explain why intracranial arteries are not directly affected. The nuclear lamina is a meshwork of intermediatetype filaments. Grains (total and non-specific) were counted over 8-10 cells per hemisphere for each lamina, and the mean number of silver grains per cell calculated. Sampling was limited to the chromitite layers and laminae that occur in the mafic-ultramafic cumulates of these complexes. In the female reproductive tract, with the exception of the uterus, the cells lie on a thick, irregular (convoluted) basal lamina. Anteriorly the epithelial cells, 3.3 mm deep, lie on a thick, smooth, basal lamina with no labyrinth layer (fig. 6). Within this region, the anchoring filaments traverse the electron-translucent zone ('lamina lucida') and connect hemidesmosomes to the electron-dense zone ('lamina densa'). No blebs are seen between the two laminae of the nuclear envelope, but fragments of intermediate laminae could still be observed between them. These laminae are, for the most par t, separated by a cell-free zone made up of many fibers. There is little spillover into the right eye's unlabelled laminae. In these laminae, there was a moderate number of tangentially and obliquely oriented fibers with diffused terminals. Underlying the inner nuclear membrane is the nuclear lamina, which is a dense filamentous network. 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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