Question

. List three characteristics of our lungs which make them suitable as respiratory surface.

Answer 1

Answer:

1. Have a rich blood supply.

2. Large surface area.

3.Huge quantity of alveoli.

Answer 2

Answer:

These three characteristics that makes our lungn suitable as respiratory surface are 1 Elasticity 2 presence of surfactant 3 presence of airsacs or alveoli

Explanation:

Elasticity   contraction and relaxation of chest cavity during exhalation and inhalation helps lugs to act suitable for respiratory surface because it helps to maintain a specific volume of diaphram during gas exchange.

presence of surfactant. The main surfactant that is present is lungs is dipalmityl phosphotidylcholine which help to regulate surface tension of the lungs basically this  surfactant reduces the surface tension by increasing the  surface area for proper gas excange

Alveoli or Airsacs   They are the ballon shaped structures helps in the efficient exchange of oxygen and carbon di oxide