Advertisements
Advertisements
Question
Distinguish between inspiration and expiration.
Distinguish Between
Advertisements
Solution
| No. | Inspiration | Expiration |
| i. | Atmospheric air is taken into the lungs. | Air rushes out from the lungs. |
| ii. | It is an active process. | It is a passive process. |
| iii. | Contraction of external intercostal muscles occurs. | Relaxation of external intercostal muscles occurs. |
| iv. | Diaphragm contracts and becomes flattened. | Diaphragm relaxes and becomes original dome shaped. |
| v. | Increase in volume of thoracic cavity. | Decrease in volume of thoracic cavity. |
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Why do we often sneeze when we inhale a lot of dust-laden air?
How is the process of respiration different from breathing?
With the help of labelled diagram explain the exchange of gases between alveolus and capillary.
Make the correct pairs.
| Column – I | Column – II |
| (P) Tidal volume | i. 1000 to 1100 ml |
| (Q) Residual volume | ii. 500 ml |
| (R) Expiratory reserve volume | iii. 2500 to 3000 ml |
| (S) Inspiratory reserve volume | iv. 1100 to 1200 ml |
Assertion: During inhalation, the diaphragm goes downward.
Reason: The volume of the thoracic cavity decreases.
During inspiration, air passes into lungs due to
Which one has the lowest value?
In Hamburger’s phenomenon, ______.
What is the vital capacity of our lungs?
Listed below are four respiratory capacities (1 - 4) and four jumbled respiratory volumes of a normal human adult
| Respiratory Capacities | Respiratory Volumes |
| 1. Residual volume | 2500 mL |
| 2. Vital capacity | 5500 mL |
| 3. Inspiratory sore volume | 1200 mL |
| 4. Total Lung capacity | 4500 mL |
Which one of the following is the correct matching of two capacities and volumes?
