Question

What are the main characteristics of the respiratory system?

Answer 1

1. Large surface area
2. Sufficient supply of blood capillaries
3. Thin and moist

Answer 2

Answer:

Respiratory System Principles

Movement of an oxygen-containing medium so it contacts a moist membrane overlying blood vessels. Diffusion of oxygen from the medium into the blood. Transport of oxygen to the tissues and cells of the body. Diffusion of oxygen from the blood into cells.