解析 血-脑屏障(blood-brain barrier):脑循环的毛细血管壁内皮细胞相互接触紧密,并 有一定的重叠,管壁上没有小孔。另外,毛细血管和神经元之间并不直接接触,而为神经胶 质细胞所隔开。这一结构特征对于物质在血液和脑组织之间的扩散起着屏障的作用,称为血 -脑屏障。
因为是轻微的BBB渗漏,所以我们关注小血管病,各种类型的痴呆和血管认知障碍。我们用如下的索引进行搜索,“(blood-brain barrier OR BBB) AND (dementia OR mild stroke OR vascular cognitive impairment OR alzheimer OR binswanger OR small vessel disease OR AD OR BD OR mild cognitive impairment) AND (MRI OR...
百度试题 题目血-脑屏障(blood-brain barrier) 相关知识点: 试题来源: 解析 血-脑屏障:指血液和脑组织之间的屏障,可限制物质在血液和脑组织之间的自由交换。其形态学基础可能是毛细血管的内皮、基膜和星状胶质细胞的血管周足等结构。反馈 收藏
【答案】：血-脑屏障是指脑组织内的毛细血管内皮细胞紧密相连，内皮细胞之间无间隙，且毛细血管几乎均为星形胶质细胞包围，这种特殊结构形成了血浆与脑脊液之间的屏障。
【答案】：血-脑屏障：指在血液和脑组织之间有一道屏障，它可限制某些物质在血液和脑组织之间的自由交换，称为血-脑屏障。
关于血脑屏障(blood-brainbarrier)的叙述下列哪项是正确的()A.是血-脑、血-脑脊液、脑脊液-脑三种屏障的总称B.其中的脑脊液-脑屏障是阻碍药物穿透的主
blood-brain barrierAlso found in: Dictionary, Thesaurus, Legal, Financial, Encyclopedia, Wikipedia. barrier [bar´e-er] 1. an obstruction. 2. a partition between two fluid compartments in the body. 3. a covering used to prevent contact with body fluids. alveolar-capillary barrier (alveo...
The blood–brain barrier (BBB) protects neurons from factors present in the systemic circulation and maintains the highly regulated brain internal milieu, which is required for proper synaptic and neuronal functioning BBB breakdown facilitates entry into the brain of neurotoxic blood-derived products, ce...
The Blood–Brain Barrier: An Introduction to Its Structure and FunctionBlood–brain barrierNeurovascular unitMorphologyTransporterThe brain is the most critical organ in our body, which requires a very well- balanced ion homeostasis. It is extremely sensitive to a large variety of chemicals, which ...