Which of the following junction types is LEAST likely to be found between adjacent endothelial cells of a leaky capillary where high permeability is required?
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Correct answer: Tight junctions
Tight junctions create tight seals — in leaky capillaries (e.g., certain fenestrated or sinusoidal endothelium) such seals are minimized to allow high permeability; thus tight junctions are reduced or absent in such areas. Anchoring and communicating junctions may still be present.
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