A can be placed in the artery to open the artery up.

Angioplasty is a procedure to open narrowed or blocked blood vessels that supply blood to the heart. These blood vessels are called the coronary arteries. A coronary artery stent is a small, metal mesh tube that expands inside a coronary artery. A stent is often placed during or immediately after angioplasty.

I hope this helps!!

Ischemia; myocardium

Explanation:

? i don't know but try it and see but lmk if im right

what ? ? clarify

answer; more than 80% percent of adults;