外皮层,靠近表皮一层细胞,形状较小,排列整齐紧密,根毛枯死后表皮脱落,此层栓质化起保护作用。水稻等禾本科植物根的外皮层中常具有一至多层。
... epicorneascleritis 角巩膜表层炎(慢性角膜炎) epicortex 外皮层 epicotyl(拉,epicotyle) 上胚轴 ...
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根表皮脱落时,外皮层以同样生长方式代替脱落的表皮。
The exodermis cell takes the place of epidermis cell with the same way when epidermis fall off.
然后再青春期时大脑外皮层又发生逆变化——变薄,并损失掉一些神经元。
It then reverses course and thins out, losing neurons as the brain matures through adolescence.
该现象在那些与控制思考计划及注意能力相关之脑前部外皮层区域表现最显著;
The delay in ADHD was most prominent in regions at the front of the brain's outer mantle (cortex), important for the ability to control thinking, attention and planning.
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