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单词 blood-brain barrier
释义 blood-brain barrier
 /blud"brayn"/, Physiol.
 a layer of tightly packed cells that make up the walls of brain capillaries and prevent substances in the blood from diffusing freely into the brain: passage across the cell membranes is determined by solubility in the lipid bilayer or recognition by a transport molecule.
 [1940-45]
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更新时间:2024/11/12 1:07:10