The diameter, length of the accessory nerve and its branches, the distance between the accessory nerve and the main trunk of the phrenic nerve were measured adopting the slide gauge with precision of 0.001 millimeter. 用精确度为0.
The number of phrenic nerve discharge and respiratory frequency. 膈神经放电数及呼吸频率。
accessory phrenic nerves 膈副神经
However, tumors originating from the intrathoracic phrenic nerve are rare. 而肿瘤起源于胸内膈神经是罕见的。