The neocortex and olfactory cortices share many features including their laminar organization, developmental sequences, and cell types. Previous work indicates that neocortical pyramidal cells exhibit a gradient of dendritic size: cells involved in the initial processing of information are less complex than those in subsequent, higher processing areas. Results presented here confirm that the same is true for the olfactory cortex: pyramidal cells in the region closest to the olfactory bulb, the anterior olfactory nucleus, have smaller total dendritic length and occupy less neural space than those in the posterior piriform cortex. These findings add to the evidence for general rules of development, organization, and function across forebrain cortices.

中文翻译：

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嗅皮质中的锥体细胞

新皮质和嗅觉皮质具有许多共同特征，包括它们的层状组织、发育序列和细胞类型。以前的工作表明新皮质锥体细胞表现出树突大小的梯度：参与信息初始处理的细胞比随后的更高处理区域中的细胞复杂。这里提供的结果证实，嗅觉皮层也是如此：最靠近嗅球区域的锥体细胞，即前嗅核，与梨状皮质后部的相比，具有更小的总树突长度并且占据更少的神经空间。这些发现为前脑皮质发育、组织和功能的一般规则提供了证据。