3 Chapter 1 Overall 1.1 Anatomizing the respiration system 1.1.1 Anatomizing the respiration system 1.1.2 Mechanical respirations 1.1.3 Moving and exchanging air 1.1.4 The change in respiration of elderly people 1.2 The influence of anesthesia-surgery abdominal on respiration 1.2.1 Abdominal Surgery 1.2.2 The influence of anesthesia on respiration 1.2.3 The mechanism causing the collapse of lungs in anesthesia - surgery There are a lot of different points of view in explaining the mechanism of the collapsing lungs in anesthesia-surgery but there are 3 main types of mechanism which are most accepted: absorption mechanism, compression mechanism and the mechanism of reducing the surfactant.