解剖学是外科手术的基础，而组织胚胎学是解剖学的基础，胚胎学胚层发育理论有助于理解解剖结构的起源与衍变规律。腹盆部解剖结构在胚胎形成发育的过程中形成原肠来源器官、泌尿生殖层与腹盆壁三层结构。通过系统地了解这三层结构的胚胎发育过程，可以从复杂的解剖结构中梳理出明晰的脉络，透过解剖学表象更好地发现解剖学本质，搭建一条从胚胎学—解剖学—外科学的桥梁，将临床应用解剖学认识更好地服务于手术实践。

Anatomy is the basis of surgery, and embryology is the basis of anatomy. The theoretical system of embryological blastoderm development is helpful to understand the origin and evolution of anatomical structure. From the perspective of development, the anatomical structure of the abdomen and pelvis can be divided into three stratums: the organs derived from primitive gut, the urogenital stratum and the wall of the abdomen and pelvis. By systematically understanding the longitudinal development of these three stratums, it is helpful to better discover the essence of anatomy through anatomical morphology. To help young doctors integrate the knowledge of embryology, anatomy and surgery, and make the understanding system of clinical applied anatomy better serve the clinical practice of surgery.