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What are the tortuous arteries in the body?

Any body can explain, why blockage is created only on main Arteries/veins.?

  • It is said that cholesterol is the main reason behind formation of plaque in veins and arteries. Then why it is occur only in main veins/arteries and not the small veins/arteries.

  • Answer:

    Blockages do not only occur in the main arteries, because they can technically occur in any artery. Atherosclerotic plaques do NOT occur in veins though. Atherosclerosis is the disease process that leads to blockages in the arteries. The development of atherosclerosis is complex. It begins with endothelial injury and eventually inflammatory cells (foam macrophages) and cholesterol is deposited in the wall. The most common sites of atherosclerosis are areas of turbulent blood flow usually at sites where the artery bifurcates or gives off branches. The larger blood vessels tend to have more branches and therefore more turbulent flow. Atherosclerosis can occur in the largest vessel, the aorta, but it can also occur in the smallest arteries of the body. Atherosclerosis in the coronary arteries can lead to heart attacks. Atherosclerosis in the arteries that supply the brain can lead to strokes. Atherosclerosis in the arteries that supply the legs is peripheral vascular disease.

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It isn't only in the main arteries. It blockages in the tiny coronary arteries that causes heart attacks.

sashs.geo

It isn't only on small vasculature. It's on large and small alike. You just know it more when it affects large vessels because it does more damage then.

cheruvima

My guess is the cholestrol within small veins is minimal, much like silt in small streams. When all the streams (veins) converge and deposit their silt in a river (the arteries) the silt is then a accumulation of what is in all the streams, so the silt in the river grows larger. (The cholestrol accumulates in the arteries)

Paraiba Blue

The blockage is due to cholesterol, smoking etc. All answers about block, heart attack can found in http://hubpages.com/_3lg1dhc59y9ou/hub/myocardialinfarction Please vote if you get enough information.

cybe22

I sure can. The short answer - the Cholesterol Theory of heart disease is WRONG. The longer answer? ONLY arteries become atherosclerotic . Veins NEVER become atherosclerotic , and they have the exact same amount of cholesterol flowing through them as do arteries. The sheer pressure is greatest in the coronary arteries of all arteries in the body. Arteries become atherosclerotic because the blood rpessure is greatest there and the force causes damage. This leads to inflammation and that leads to atherosclerosis. Veins have much lower pressure. Think about i- if cholesterol caised heart disease , WHY don't the tiny veins in your wrist become atherscleoritc? The reason is cholesterol is NOT the cause of heart disease. Shoddy science from the 1950's is responsible for this anti cholesterol view. DAMAGE to the arterial wall is what causes atherscleorsis NOT cholesterol. Cholesterol is your friend and a REPAIR substance. Your clever observation alone should have disproved the Cholesterol Theory. Serious cardiovascular researchers had already abandoned the Cholesterol Theory around the 1998 time frame.

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