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Blood Vessels - Any of the tubular vessels conveying the blood (arteries, arterioles, capillaries, venules, and veins). |
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Blood-Aqueous Barrier - The selectively permeable barrier, in the EYE, formed by the nonpigmented layer of the EPITHELIUM of the CILIARY BODY, and the ENDOTHELIUM of the BLOOD VESSELS of the IRIS. TIGHT JUNCTIONS joining adjacent cells keep the barrier between cells continuous. |
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Blood-Brain Barrier - Specialized non-fenestrated tightly-joined ENDOTHELIAL CELLS with TIGHT JUNCTIONS that form a transport barrier for certain substances between the cerebral capillaries and the BRAIN tissue. |
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Blood-Retinal Barrier - A specialized transport barrier, in the EYE, formed by the retinal pigment EPITHELIUM, and the ENDOTHELIUM of the BLOOD VESSELS of the RETINA. TIGHT JUNCTIONS joining adjacent cells keep the barrier between cells continuous. |
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Heart - The hollow, muscular organ that maintains the circulation of the blood. |
CANADIAN
MEDICAL GUIDE