How do blood sinuses differ from veins?
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veins r well developed tube in which deoxygenated blood flow. nd in sinus oxy blood flow
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Unlike veins, these sinuses possess no muscular coat. Their lining is endothelium, a layer of cells like that which forms the surface of the innermost coat of the veins. The sinuses receive blood from the veins of the brain and connect directly or ultimately with the internal jugular vein.
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