H? th?ng này ??m b?o r?ng l??ng ch?t l?ng ???c b?m ra luôn ?n ??nh và phù h?p v?i yêu c?u s? d?ng.The phrenic nerve is crucial for diaphragm movement, originating from spinal nerves C3 to C5, and is also responsible for its total motor innervation. This innervation makes it possible for the diaphragm to accomplish its important features, speci