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sinusoid
(si´nә-soid)
resembling a sinus.
a form of terminal blood channel consisting of a large, irregular, anastomosing vessel, having a lining of reticuloendothelium
but little or no adventitia. Sinusoids are found in the liver, adrenal glands, heart, parathyroid glands, carotid bodies,
spleen, hemolymph glands, and pancreas.
Sinusoids in a schematic view of a portion of a hepatic lobule.

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