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前肠的假设后来引起争议。The foregut hypothesis was later contested.

胰腺胚胎学起源于前肠的2个芽。The embryologic pancreas arises from 2 buds in the foregut.

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根据我们的观察,对前肠提出了新的分区。A new scheme for zoning of foregut was proposed based on our observation.

前肠柱状上皮细胞游离面的微绒毛长而密,后肠的短而稀疏。Microvilli in foregut are long and dense, but short and sparse in postgut.

肠胚胎的消化管,包括前肠,中肠和后肠。The embryonic digestive tube consisting of the foregut the midgut and the hindgut.

由前至后依次分前肠、中肠和后肠,前肠起始端膨大,肠管由前向后逐渐变细。The beginning of the intestine expands, and the diameter of gut was getting thin from foregut to postgut.

这些表皮细胞在胚胎学上把源于支气管生长过程中的前内脏叫内胚层。These epithelial elements arise embryologically from foregut endoderm in the process of bronchial tubular growth.

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脂肪酶的分布与淀粉酶相似,也主要集中在幽门盲囊、强肠、胃部脂肪酶作用微弱。Because the distribution of lipase is the same as that of amylose, the lipases between pylorus and foregut had much more important effection than those of stomach.

消化道上皮细胞有无纹状缘是区分中肠与前、后肠的重要标准之一。The epithelium cells of digestive tube with or without the striated border can be used as one of important standard for distinguishing the midgut from foregut and hindgut.

而在试验后期,中蛋白饲料组前肠中该酶活性显著高于高蛋白饲料组的。During the later period of the test, amylase activity in foregut of intermediate protein content feed group is significantly higher than that of high protein content group.

在实验设定的条件范围内,胃、肝胰脏、前肠、后肠各部位蛋白酶的最适温度分别为35℃、30℃、40℃、35℃,淀粉酶的最适温度分别为30℃、25℃、30℃、35℃。The optimal temperature for proteinase activity in stomach, hepatopancreas, foregut and epigaster were 35℃, 30℃, 40℃, and 35℃, and were 30℃, 25℃, 30℃, 35℃ for amylase, respectively.

本文总结了体重减轻、胃肠激素、前肠学说、后肠学说、脂肪细胞因子和炎症因子等方面机制的研究进展。This review summarizes the possible mechanisms which include weight loss, gastrointestinal hormones, foregut hypothesis, hindgut hypothesis, adipocytokines, and inflammatory factors.

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扬子鳄肝脏由早期胚胎前肠门边缘内陷的内胚层上皮和脏壁中胚层组织共同发育形成。The liver of Alligator sinensis was formed by the endodermal epithelia invigilated from the edge of foregut door and by surrounding mesoderm during early stages of pre-natal development.