The digital/phalangeal region encloses the fingers, and the thumb is called the pollex.
I hope this helps you and have a great day!! :)
A serving size is how much of it you take for yourself, and portion size is how much out of the whole thing.
For example cheeto puffs, a serving size would be one of those little mini bags. but a portion, is probably just a section of the chips. mean serving size is how many youre going to eat but portion is just a chunk out of the entire thing
2nd 5th and 1st one i think