家兔减压神经颈部变异的几种新类型

SOME NOVEL VARIATION OF THE CERVICAL DEPRESSOR NERVE SEGMENT IN RABBITS

用解剖学方法结合电生理学方法鉴别减压神经形态上的变异。在35只纯种青紫蓝家兔中,减压神经颈部有形态变异者达23只(占65.71％)20种,观察到减压神经变异的三种新类型:减压神经三分支型、“无”减压神经型和减压迷走交感干型;至于减压神经的起点,以起于喉前神经者居多。

N. depressor cordis morphologic variations of rabbits were discriminated by the integration of anatomical and electrophysiological technique. Among the 35 pure species of QING ZI LAN RABBITS, 23 were found depressor morphological variation in the segment of cervical (accounting for 65.7%), and 20 kinds of novel variation including non-depressor type, depressor-vagus sympathetic trunk type and three-branch type were observed. The origin of n. depressor cordis were usually considered from superior laryngeal nerve of the rabbits.