不同年龄大鼠小肠黏膜表面积的变化。
Changes in the mucosal surface area of the small gut of rats of different ages.
作者信息
Pénzes L, Skála I
出版信息
J Anat. 1977 Sep;124(Pt 1):217-22.
Abstract
Changes in the mucosal surface area of the small intestine of the ageing male Wistar rat were investigated. The results show that the mucosal surface area (Ma) and, even more, the mucosal area per unit serosal area (Ra) diminishes along the length of the small intestine (excluding the duodenum) in the young rat. In adults, however, there is relative constancy of these parameters along the small intestine. The serosal circumference (Sc) of the intestinal segments investigated increased considerably with advancing age.
摘要
对衰老雄性Wistar大鼠小肠黏膜表面积的变化进行了研究。结果表明，在幼鼠中，小肠（不包括十二指肠）全长范围内，黏膜表面积（Ma），甚至单位浆膜面积的黏膜面积（Ra）均减小。然而，在成年大鼠中，这些参数在小肠全长范围内相对恒定。所研究肠段的浆膜周长（Sc）随年龄增长显著增加。
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