Arterial blood vessels commonly become blocked or constricted due to calcium deposits on the walls of the arteries.

Arterial blood vessels commonly become blocked or constricted due to calcium deposits on the walls of the arteries.

• A. True
• B. False
• C. Sometimes
• D. Rarely

Answer: (B)

Blockage in arteries is driven mainly by atherosclerosis—the growth of lipid-rich plaques within the arterial wall that narrows the lumen. Calcium deposition is a common feature of these plaques as the disease progresses, and it helps hallmark advanced atherosclerosis by making plaques harder and arteries stiffer. However, calcium deposits themselves are not the primary cause of obstruction; the narrowing comes from the plaque mass in the vessel wall, with calcification marking more advanced disease. So the statement overstates calcium as the direct cause of blockage, which is why the best understanding is that atherosclerotic plaque buildup is the driver, with calcification indicating disease progression.

Blockage in arteries is driven mainly by atherosclerosis—the growth of lipid-rich plaques within the arterial wall that narrows the lumen. Calcium deposition is a common feature of these plaques as the disease progresses, and it helps hallmark advanced atherosclerosis by making plaques harder and arteries stiffer. However, calcium deposits themselves are not the primary cause of obstruction; the narrowing comes from the plaque mass in the vessel wall, with calcification marking more advanced disease. So the statement overstates calcium as the direct cause of blockage, which is why the best understanding is that atherosclerotic plaque buildup is the driver, with calcification indicating disease progression.