高原鼠兔(Ochotona curzoniae Hodgson)脊神经的形态解剖

A Gross Anatomic Study of the Spinal Nerves of the Pika(Ochotona curzoniae)

本文在双筒解剖镜下对15只高原鼠兔的脊神经进行了追踪,对每对脊神经的起源、行程及分布作了详细描述,并同家兔和大鼠者进行了比较.发现高原鼠兔的脊神经,除因其椎骨与家兔者不同而引起一些差异外,基本形态与家免几乎一致,有些特征与大鼠也相同.高原鼠兔臂丛和腰荐丛的周围分布,在不同个体间有较大的差异,但有一个基本的分布形态.

The spinal nerves of fifteen pikas are traced with the aid of a binoculardissecting microscope.Their origin,course and distribution of each spinalnerve are described in detail and compared with those of the rabbit and therat.It is found that the spinal nerve of the pika is much more similar tothat of the rabbit except some differnce resulting from variation of theirspinal bones.Some similarities with the rat are observed.The distributionof the brachial and lumbosacral plexus of the pika varies among differentbodies,but a basic pattern of distribution exists.