肠脑，作为真正意义上的肠道神经系统，大约由5亿神经细胞构成，这和猫的大脑的神经细胞数目相当。

The "gut brain, " formally known as the enteric nervous system, is made up of some 500 million nerve cells, as many as there are in a cat's brain.

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传统上，肠内公式，纤维自由，因为可能会有输卵管阻塞的一种构想，即在休息了对肠道有益的作用结果。

Traditionally, enteral formulae were fibre free because of the possible tube obstruction and the concept that a bowel at rest has beneficial effects on outcome.

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通过红外线光学测量法，研究人员可以证明由肥大细胞和肠嗜铬细胞分泌的介质能直接激活肠道的神经细胞。

Using ultrafast optical measuring methods, the researchers were able to demonstrate that mediators from mast cells and enterochromaffin cells directly activate the nerve cells in the bowel.

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