【摘要】 通过对3月龄牦牛大脑进行形态学观察,为进一步探讨牦牛神经系统对高寒低氧环境适应性方面的研究提供形态学资料。运用大体解剖学方法对4头3月龄牦牛的大脑进行解剖、观察、描述、绘图。结果表明,犊牦牛大脑表面平坦,沟回分界不明显;大脑前半部较平直,但在大脑背外侧中部,突然向两侧膨大加宽;大脑外侧窝为一个短小的沟,有的较深而有的较浅,视交叉明显呈钝角。由此说明,3月龄牦牛大脑的形态与成年牦牛的大脑相比有明显区别。更多还原

【Abstract】 The morphological observation of the cerebrums of 3-month-old yaks provided morphological information for further exploration of yak nervous system’s adaptability to arcticalpine hypoxic environment.Through anatomical methods,the cerebrums of four 3-month-old yaks were dissected,observed,described,and drawn.As shown by the results,the cerebrums of yak calves were flat,and the gaps between gyri and sulci were not clear.The cerebrums were flat in the first half and expanded to both sides in dorsolateral central part of cerebrums.There was a short small sulus,deep or shallow,in the lateral fossa of cerebrum.The optic chiasm was obtuse.So there were significant differences between the cerebrum of 3-month-old yaks and that of adult yaks.更多还原