英语语法分析

Arteriovenousanastomoses were observed in the inferior and middle turbinal mucosae of fetuses.

在胎儿的下和中鼻甲粘膜中观察到动静脉吻合。

The muscularis mucosae derived from the muscle stem cells in the submucosa.

黏膜肌层起源于黏膜下层的肌肉干细胞。