Name the valve present between left auricle and left ventricle.

Starting outside the parietal pericardium, list the different layers you would cross to get into the left ventricle.

you are auscultating your patient' chest ,and you notice that S2 sound seems to be split , meaning that you can hear 2 separate sounds. You can also hear a  noticeable murmur during S2 .Is the abnormality in the atrioventricular valves or the semilunar valves? How do you know? Explain

Name the blood vessels that leaves left ventricle.