Types of Respiratory System

8.1

Types of Respiratory System

The respiratory structure is the respiratory surface that enables gaseous exchange to occur between respiring organisms cells and their outer environment.

Adaptions of respiratory structures for efficient exchange of gases in big organisms

Large ratio total surface area to volume (TSA/V) for the efficient exchange of respiratory gases.
A thin respiratory structure that is one cell thick, allows the diffusion of respiratory gases to occur.
The surface of the respiratory structure is always moist for respiratory gases to dissolve in them.
The respiratory structure is complete with a network of blood capillaries (except for insects), that allows for the efficient delivery of respiratory gases.