Do v?y, quy?t ??nh ch?n màng b?m ???c làm b?ng ch?t li?u gì c?ng r?t quan tr?ng.The phrenic nerve originates in the cervical spinal roots C3, C4, and C5, and it can be important for initiating the breathing procedure. This nerve serves the two motor features for diaphragm contraction and sensory functions for that pericardium and mediastinal ple