Details notes about the heart taking in consideration of important point like definations, description, location, layers of the heart,identify the chambers,difference between the arteries and veins,how the valves work,what differentiate cardiac tissue from cardiac muscle tissues,intervals and segments of the heart,how electrocardiogram works explaining the P wave,QRS wave and the T wave,pressure and volume changes during cardiac cycle(the cardiac cycle),why heart rate will go up or not go up,fight or flight,etc is like asking a detail notes about the heart.this question is anatomy and pysiology question