The microfilament, ribosomes an keratohyalin granules increased and the glycogen decreased as the fetus developed.

随着胎龄的增加，微丝束、透明角质颗粒、核蛋白体增加，糖原逐渐减少。

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The microfilament, ribosomes an keratohyalin granules increased and the glycogen decreased as the fetus developed.

随着胎龄的增加，微丝束、透明角质颗粒、核蛋白体增加，糖原逐渐减少。

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