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Normal blood vessel (left) vs. vasodilation (right)
Normal blood vessel (left) vs. vasodilation (right)
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Transmission electron micrograph of a blood vessel displaying an erythrocyte (red blood cell, E) within its lumen, endothelial cells forming its tunic
Transmission electron micrograph of a blood vessel displaying an erythrocyte (red blood cell, E) within its lumen, endothelial cells forming its tunica intima (inner layer), and pericytes forming its tunica adventitia (outer layer).
Constricted blood vessel.
Constricted blood vessel.