MN v. Derek Michael Chauvin Trial - DR. ANDREW BAKER - MEDICAL EXAMINER, HENNEPIN CO. - DIRECT

HENNEPIN COUNTY, MINNESOTA - APRIL 9: 14:51:30 exhibit 191? a close up photograph of index and middle fingers of his right hands he has bruising on his knuckles these are blunt force injuries they could be an altercation or asphault, your examination of mr floyds heart did you take a photograph? i dont normally photograph organs that are normal his heart was enlargened by weight but you cant capture it by photograph, when we talk about the tissues of the heart could you describe them generally? dissecting the heart is one of the most important parts the first thing we do is we remove the heart from the lungs then you make sure theres no blood or clot to get an accurate weight people who have high blood pressure their heart will get heavier we weight the heart first then you dissect the coronary arteries you take a scalpel and cut every 2-4 millimeters a normal adult heart has 2 coronary arteries the left branches into the left anterior descending so we dissect that and then we look at the right we want to make sure those arteries are in the right place where they connect in the aeorta we look tiny slice tiny slice to make sure theres no blockage then we carefully slice the heart cut through the muscle we look for evidence of previous heart damage and then we open the valves in the same direction the blood flows to make sure they are normal 14:55:47 (Footage by Law&Crime via Getty Images)