Breathing and Exchange of Gases BIOLOGY - Breathing and Exchange of Gases

In man, nasal and oral cavities are separated by:

Congestion of the lungs is one of the main symptoms in:

Where does the exchange of gases take place in the respiratory system?

Which one of the followings is correct regarding larynx?

How much air is left inside the lungs after a maximum forceful respiration in a normal adult person? What technical term is given to this air?

What do you understand by forceful expiration?

Mark the odd one in the following groups. Inspiratory capacity, residual volume, expiratory capacity, vital capacity.

Write the names of the branches in proper sequence of the primary bronchus that enters a lung, till they end up with alveoli.

State the volume of air remaining in the lungs after a normal breathing.

What is Tidal volume? Find out the Tidal volume (approximate value) for a healthy human in an hour.

Distinguish between: Vital capacity and Total lung capacity.

Distinguish between: IRV and ERV

Distinguish between: Inspiratory capacity and Expiratory capacity.

Define oxygen dissociation curve. Can you suggest any reason for its sigmoidal pattern?

What happens to the respiratory process in a man going up a hill?

Neha planned to go the lakeside for picnic with her friends. Suddenly they noticed a man drowning in the lake. Everyone was frightened, but Neha asked them to stop panicking and take the man out of water. After the man was rescued, he was found unconscious. Neha then suggested that mouth to mouth artificial respiration should be given to save the man. One of her friend did as she guided.Finally, the man was saved. He thanked Neha and her friends for their help.

1. Why is artificial respiration given?
2. Can artificial respiration bring back a person to consciousness even after death?
3. What values are shown by Neha?

What do you understand by occupational respiratory disorders?

Have you heard about hypoxia? Try to gather information about it, and discuss with your friends.

How is respiration regulated?

Diffusion of gases occurs in the alveolar region only and not in the other parts of respiratory system. Why?

Explain the process of inspiration under normal conditions.