sinusoid
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sinusoid
[si´nŭ-soid]1. resembling a sinus.
2. 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.
si·nu·soid
(si'nŭ-soyd),1. Resembling a sinus.
2. Sinusoidal capillary; a thin-walled terminal blood vessel having an irregular and larger caliber than an ordinary capillary; its endothelial cells have large gaps and the basal lamina is either discontinuous or absent.
Synonym(s): vas sinusoideum [TA], sinusoidal capillary
[sinus + G. eidos, resemblance]
sinusoid
/si·nus·oid/ (si´nŭ-soid)1. resembling a sinus.
2. a form of terminal blood channel consisting of a large, irregular anastomosing vessel having a lining of reticuloendothelium and found in the liver, heart, spleen, pancreas, and the adrenal, parathyroid, carotid, and hemolymph glands. 
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Sinusoids in a schematic view of a portion of a hepatic lobule.
sinusoid
(sī′nə-soid′, -nyə-)n.
1. Mathematics See sine curve.
2. Anatomy Any of the venous cavities through which blood passes in various glands and organs, such as the adrenal gland and the liver.
si′nu·soi′dal (-soid′l) adj.
si′nu·soi′dal·ly adv.
sinusoid
[sī′nəsoid]
Etymology: L, sinus + Gk, eidos, form
an anastomosing blood vessel that is somewhat larger than a capillary and is lined with reticuloendothelial cells.
si·nu·soid
(sī'nŭ-soyd)1. Resembling a sinus.
2. Sinusoidal capillary; a thin-walled terminal blood vessel having a more variable and larger caliber than an ordinary capillary; its endothelial cells have large gaps and the basal lamina is either discontinuous or absent.
[sinus + G. eidos, resemblance]
sinusoid
1. resembling a sinus.
2. 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.