In adulthood, most tissues in the mammal body contain macrophages that were ... the team is investigating whether a similar cell exists in the human aorta. Those findings are not yet published ...

The aorta, the largest artery in the body, is almost the diameter of a garden hose. Capillaries, on the other hand, are so small that it takes ten of them to equal the thickness of a human hair.

are especially prone to developing aneurysms at the root of the aorta, the major artery that carries blood away from the heart and to the rest of the body. Loeys-Dietz syndrome affects the ...