Respiration in Humans

At the time of inspiration, the diaphragm contracts, increasing the pulmonary volume thereby reducing the intrapulmonary pressure to less than the atmospheric pressure and air moves into the lungs.

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

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?

Choose the appropriate word and fill in the blank:

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

Exhaled air contains more amount of _____.

The process of inhaling air through the nose by human beings.

Explain the mechanism of breathing in human beings.

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

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

Match the following.

Name the following processes:

Breathing out of foul air is called _______

The inspired air is rich in:

Take a deep breath. You will feel air coming in and filling your lungs. Where did the air enter in? What part of your body got bigger?