哺乳动物的消化道是对电离辐射极为敏感的器官之一。全身或腹部局部受到超过一定剂量的照射之后,就会造成肠型放射病,并导致所谓“肠死亡”。临床上放射治疗肿瘤病人,也常于腹部受到照射后出现胃肠道的反应。因此,多年来消化道遂成为放射生物学、放射治疗学和辐射防护学工作者重点研究的一个对象。电离辐射作用后,消化道的各种生理功能,包括消化、吸收、运动、分泌,都发生了深刻的变化,同时也在病理解剖、病理组织学方面出现极为明显的改变。 The mammalian digestive tract is one of the most sensitive organs to ionizing radiation. After the body or the abdomen is partially exposed to more than a certain dose of radiation, it can cause enteropathy and cause so-called “intestinal death”. Radiation oncology patients with cancer, often after irradiation in the abdomen gastrointestinal reactions. As a result, the digestive tract has for years been a focus of research in radiobiology, radiotherapy and radiation protection. Ionizing radiation effect, the digestive tract a variety of physiological functions, including digestion, absorption, exercise, secretion, have undergone profound changes, but also in pathological anatomy, histopathology, a very significant change.