collateral circulation

American  

noun

1. circulation of blood through a network of minor vessels that become enlarged and joined with adjacent vessels when a major vein or artery is impaired, as by obstruction.

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Etymology

Origin of collateral circulation

First recorded in 1875–80

Example Sentences

“Your heart can actually form its own bypass from exercising, so you can develop that collateral circulation,” she said.

From Washington Times

“If you have coronary heart disease, even a little bit, which we all get as part of the aging process, if you are regularly exercising, your body will develop all of these blood vessels - that’s collateral circulation. That can actually help sustain life and prevent you from having a heart attack.”

From Washington Times

They all had a proximal vessel occlusion, a small infarct core, and moderate-to-good collateral circulation.

From Forbes

The degree of mechanical obstruction is determined by the nature of the thrombus, whether parietal or obstructing, and by that of the vessel, whether provided with anastomoses sufficient to permit a compensatory collateral circulation or not.

From Project Gutenberg

When the collateral circulation is insufficient to remove the blood from a region whose efferent venous trunk is completely filled with a thrombus, the phenomena of stagnation are produced.

From Project Gutenberg