Healthy and Clogged Artery

Healthy and Clogged Artery

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Credit: BIOPHOTO ASSOCIATES/SCIENCE PHOTO LIBRARY

Caption: Light micrographs of sections of a healthy artery (left), and an artery that is almost completely blocked by an atheroma (right). Atheroma is the deposition of fatty material on the inner walls of an artery. This can greatly reduce the size of the lumen (inner space, white) which causes a reduction in blood flow (ischaemia) to the tissue supplied by the artery. If the atheroma blocked an artery leading to the heart it would cause a heart attack.

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Keywords: artery, atheroma, blood flow, comparison, composite, diseased, healthy, heart attack, human, ischaemia, light micrograph, lm, medical, normal

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