It is the aorta. It is the biggest and the main artery
Appetite is the the desire for something food related hunger is well how hungry you are
There are multiple ways to burn calories such as doing workouts, running etc but if you would like to enhance it you could go on diets (Eat or drink certain foods such as Coffee that is known to boost the metabolism and burn more calories) You could also slowly start to disinclude certain items in your fooy pyramid such as dairy (or lessen the intake of dairy and fatty foods).
If this is all 1 answer then it should be “a tornado”
