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lake (lāk)   to undergo separation of hemoglobin from erythrocytes.
  a circumscribed collection of fluid in a hollow or depressed cavity; see also lacuna.
 

lacrimal lake  the triangular space at the medial angle of the eye, where the tears collect.

marginal lakes  discontinuous venous areas, relatively free of villi, near the edge of the placenta, formed by merging of the marginal portions of the intervillous space with the subchorial lake. Called also marginal sinuses, because they were originally thought to be circumferentially continuous and important for placental drainage.

subchorial lake  the portion of the placenta, relatively free of villi, just beneath the chorionic plate; at the edge of the placenta it becomes continuous with irregular channels to form the marginal lakes.





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