There were inverse u-shaped ciliated apophysis and v-shaped ciliated grooves on the inferior segment of descending intestine, while only v-shaped ciliated groove existed on the ascending intestine.

  • 除降肠上段外,肠其他各段黏膜均为单层柱状上皮,降肠下段有呈倒“U”型的纤毛突起和“V”型的纤毛沟,升肠只存在纤毛沟;

  • 互联网摘选 2025-01-19 23:26:52

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