- ?? ? ???, ???? ??? ???? ?????(?:???) ?????(?.?????)? ??? ? ????.Probably the most well-known mnemonic among anatomy students in fact fears the innervation in the diaphragm. Master ' C3, 4, five retains the diaphragm alive!' and you will never fail to remember the motor innervation once more!The divisions from the diaphragm into sternal, costal,