This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Coronary heart disease is caused by the building up of plaques in the arteries of the heart. these arteries are the blood vessels that supply blood to the heart. yes po. heart also needs blood supply. so what happens when there is plaque? The arteries will harden, decrease on diameter, and will be deprived of oxygen. Hence, the arteries with plaque will die. if it dies it will no longer be able to supply oxygenated blood to the heart.