Respiratory System Quiz

The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. Its function is to facilitate the exchange of oxygen and carbon dioxide.

In land animals, the respiratory surface is internalized as linings of the lungs. Gas exchange occurs in millions of small air sacs known as alveoli in mammals and reptiles, and atria in birds.

The air sacs in the lungs have a very rich blood supply, bringing the air into close contact with the blood, thus facilitating gas exchange.

<p>The system of airways that communicate with the external environment consists of hollow tubes, the largest of which is the trachea, branching into the two main bronchi.</p> Signup and view all the answers

<p>In mammals and reptiles, the air sacs are called alveoli, while in birds, they are known as atria.</p> Signup and view all the answers

<p>The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants.</p> Signup and view all the answers

<p>In land animals, the respiratory surfaces are internalized as linings of the lungs.</p> Signup and view all the answers

<p>In mammals and reptiles, the microscopic air sacs in the lungs are called alveoli.</p> Signup and view all the answers

<p>The largest airway that communicates with the external environment is the trachea.</p> Signup and view all the answers

<p>The air sacs in the lungs have a very rich blood supply, bringing the air into close contact with the blood.</p> Signup and view all the answers