六、正常新生儿保健胎儿离开母体,出生后28天以内者称为新生儿。此时,新生儿体内各系统器官,为适应外界环境而发生了一系列变化。如胚胎期的肺脏是没有呼吸功能的,出生后由于啼哭,使肺泡膨胀便开始了有节奏的呼吸,从而又引起了循环的变化。此时器官完整,但各系统器官发育还不十分完善,新生儿对外界环境抵抗力和适应能力都很差,因此新生儿 Sixth, the normal newborn baby fetus from the mother within 28 days after birth are called newborns. At this point, the neonatal system of organs in the body, in order to adapt to the external environment and a series of changes. Such as the embryonic lungs are non-respiratory function, after birth as a result of crying, the expansion of the alveoli began rhythmic breathing, which in turn caused a cyclic change. Organ at this time complete, but the system organ development is not yet perfect, neonatal environmental resistance and adaptability are poor, so the newborn