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Title
3D Illustration of Human Respiratory System Lungs Anatomy #171167874
Description
The respiratory system also respiratory apparatus, ventilator system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history. In land animals the respiratory surface is internalized as linings of the lungs.