Normal Pregnancy Pregnand The course that the embryo and the fetus grow in the maternal body Stages f pregnancy Early pregnancy: $12 weeks Mid pregnancy:≥13 weeks,≤27 weeks Late pregnancy: 228 weeks Term pregnancy:≥37 weeks,<42 weeks

复旦大学：《医学生综合素养 Medical students Comprehensive professionalism》教学资源_优秀导师工作经验——做快乐的老师，让科研之路不是苦旅

复旦大学：《医学生综合素养 Medical students Comprehensive professionalism》教学资源_优秀导师工作经验——担任本科生导师的几点体会（陈献华）

复旦大学：《医学生综合素养 Medical students Comprehensive professionalism》教学资源_优秀导师工作经验——我和我那些八年制的孩子们（夏春梅）

Definition of pregnancy Pregnancy is defined as the course of embryo and fetal growth and development in uterine It begain at the fertilization and end the delivery of the fetal and it's attachment

定义 孕28周后,胎盘附于子宫下段,甚至胎盘下缘 达到或覆盖宫颈内口,位置低于胎儿先露部 ,称为前置胎盘

Incidence and Prevalence: Increase significantly Range from 1~50% General population: 1~2% Infertile women: 30~50% Occurs primarily in women in 25~45s

Dystocia literally means difficult labor and it is characterized by abnormally slow progress of labor It is the consequence of four distinct abnormalities that may exist singly or combination

复旦大学：《医学生综合素养 Medical students Comprehensive professionalism》教学资源_课程绪论（钱睿哲）

Cerebral vascular Disease Definition of term: The term cerebrovascular disease designates any abnormality of the brain resulting from a pathologic process of the blood vessels. Sudden loss of neurological function is the hallmark of cerebrovascula disease. Cerebrovascular disease is the third most common cause