Human Respiratory System

Look at the picture of respiratory organs and answer the question.

Which of the organ shown in the picture contains salivary glands?

Define the oral cavity and its functions.

What is expiration?

What is inhalation and what is exhalation?

We can live for a day without food. But we cannot live even for a few minutes without air. Why?

Name the structure which moves dust particles away from lungs.

Write a short note on the mechanism of breathing. Differentiate between inspiration and expiration. 

The lungs contain millions of minute bronchi.

Explain the composition of inhaled and exhaled air with the help of a bar graph.

Our bodies fulfill the additional energy requirement during vigorous exercises. How?

Discuss human respiratory system with a well lebelled diagram.

While dusting the room why do we sneeze?

The larynx has fold of tissue which vibrate with the passage of air to produce.

Which of the following is not a part of the human respiratory system ?

Choose the appropriate word from the brackets. (circulation, trachea, diaphragm)

 Air that enters through the nose passes into _____ tube.

Choose the appropriate word and fill in the blank:

Respiration takes place because of up and down movement of _____. (circulation, trachea, diaphragm)

Name the following:
The voice box of the human body is also known as:

How do the lungs help us?

Name the organ of the body which is protected by the rib cage.

The process of giving out air is known as exhalation.