The phrenic nerve originates in the cervical spinal roots C3, C4, and C5, and it can be important for initiating the respiration system. This nerve serves each motor features for diaphragm contraction and sensory functions to the pericardium and mediastinal pleura, such as the phrenic nerves.Đầu nối Sang-a, NKC Súng phun sơn Devilbiss Các s