C?ng b?m v?i ?ng b?m linh ho?t, có th? xoay chuy?n theo nhi?u chi?u h??ng khác nhau và th?c Hello?n nhi?m v? hút, x? ch?t l?ng.The phrenic nerve originates from the cervical spinal roots C3, C4, and C5, and it can be essential for initiating the respiration system. This nerve serves both equally motor features for diaphragm contraction and sens