what damage do fully blocked arteries
1 HBP causes damaged and blocked arteries. 2  A heart attack is the result of a blocked blood supply to the heart muscle tissue. 3  This can happen when the arteries to the heart become thicker and harder from a buildup of plaque. Heart failure is the term used for a heart that is not supplying sufficient blood flow to the rest of the body. 2  High blood pressure damages the entire complex circulatory system. 3  As mentioned above, HBP creates conditions for blocked arteries. 4  HBP adds to the workload of the heart.