研究设计：我们研究了大鼠脊索的电子和光学显微镜下改变、嗜中性粒细胞浸润和脂过氧化作用情况，同时还研究了其早期的神经系统检查情况。

Study Design. Electron and light microscopic changes, neutrophil infiltration, and lipid peroxidation in the spinal cord and early neurologic examination were studied in rats.

youdao

脊索是双边对称的，三叶裂的，分段的腔壁。

Chordates are bilaterally symmetrical, triploblastic, segmented coelomates.

youdao

比如，凡长有脊索（包括鲨鱼，蟒蛇，鹈鹕还有你的脊柱）的生物都归属于脊索动物门。

For instance, everything with anotochord (which would be a spine for sharks, pythons, pelicans, you) belongsin the phylum Chordata.

youdao