- ?? ? ???, ???? ??? ???? ?????(?:???) ?????(?.?????)? ??? ? ????.The respiratory diaphragm is a big sophisticated muscle and thus its blood offer emanates from a variety of arteries. The costal portion of the diaphragm is provided via the subcostal arteries as well as the 5 most inferior pairs of intercostal arteries.Kenhub fosters a safe Masterin