This video is available for NEETprep Video Course students only
You’ve reached the end of your free Videos limit.
#3 | Respiratory System: Pulmonary Ventilation
(Zoology) > Breathing and Exchange of Gases
My Notes
Create your notes while watching video by clicking on icon in video player.
Related Practice Questions :
Contraction of diaphragm:
| 1. | Increases the volume of the thoracic chamber in the antero-posterior axis |
| 2. | Increases the volume of the thoracic chamber in the dorso-ventral axis |
| 3. | Decreases the volume of the thoracic chamber in the antero-posterior axis |
| 4. | Decreases the volume of the thoracic chamber in the dorso-ventral axis |
76%
Level 2: 60%+
Hints
What keeps the lungs inflated even during expiration?
| 1. | The smooth muscles of the lung |
| 2. | The diaphragm and the intercostal muscles alone |
| 3. | The visceral pleurae and the changing volume of the lungs |
| 4. | Surface tension from pleural fluid and negative pressure in the pleural cavity |
56%
Level 3: 35%-60%
Hints
Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because
| 1. | there is a negative pressure in the lungs |
| 2. | there is a negative intrapleural pressure pulling at the lung walls |
| 3. | there is a positive intrapleural pressure |
| 4. | pressure in the lungs in higher than the atmospheric pressure |
59%
Level 3: 35%-60%
NEET - 2016
Hints
Assertion : Coughing and sneezing are necessary.
Reason : Coughing and sneezing are reflex actions.
- If both the assertion and the reason are true and the reason is a correct explanation of the assertion
- If both the assertion and reason are true but the reason is not a correct explanation of the assertion
- If the assertion is true but the reason is false
- If both the assertion and reason are false
54%
Level 3: 35%-60%
Hints
© 2026 GoodEd Technologies Pvt. Ltd.