But the positive reaction of keratin was found in inner cells of tubular and central cells of trabecular patten.

而小管的内层细胞和小梁中央细胞呈角蛋白阳性。

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When the root structure is damaged, the epidermis breaks, the cortex and central cells disintegrate and die gradually.

根结构受到破坏后，表皮层断裂，皮层、中柱细胞逐渐解体死亡。

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A mature embryo sac is composed of egg apparatuses (two synergids and one egg cell), central cells and three antipodal cells.

成熟胚囊包含卵器(由两个助细胞、一个卵细胞组成)，中央细胞及三个反足细胞。

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It has 20, 000 central nervous system cells so big they can be seen without a microscope. (Humans have 100 billion brain cells.) Kandel turned down an offer to run the psychiatry department at Harvard's Beth Israel Hospital and bet his career on the slugs.

FORBES: Viagra for the Brain

And if countries do accept the need for research involving human stem cells, a central bank with material available to all researchers is more efficient.

BBC: Embryonic stem cells can be turned into any kind of cell

Synapses are the junctions between nerve cells, and their action is central to learning and memory.

ECONOMIST: Eat your way to a better brain