Question

state and describe three characteristics of respiratory surfaces that allow for efficient gas exchange?

Answer 1

The characteristics of respiratory surfaces are as follows:

• Respiratory surfaces have large surface area which allows the diffusion of a large volume of respiratory gases

• Their walls are generally thin as a result of which the respiratory gases do not have to travel a long distance in and out of the respiratory surface.

• They contain a rich network of blood capillaries into which the respiratory gases diffuse into.