室管膜上神经纤维可存在于海马伞的多纤毛区，也可存在于海马体的少纤毛区。

Supraependymal nerve fibers existed not only on the ciliated surface of hippocampal fimbria, but also in the middle and posterior surfaces of hippocampal body.

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吸烟组海马CA1、CA3、齿状回神经细胞数目减少，神经纤维增粗、肿胀、轴突深染。

In the smoking group, the number of neurons in CA1, CA3 and dentate gyrus were significantly decreased, the nerve fibers were thickened, swelling and deep stained.

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