Q. No.Most of the aquatic arthropods respire through:
| 1. diffusion over entire body surface | 2. gills |
| 3. tracheae and tracheoles | 4. skin |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
76%
From NCERT
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Branchial respiration is seen in all the following except:
| 1. Aquatic arthropods | 2. Fishes |
| 3. Amphibians like frog | 4. Aquatic mollusks |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
56%
From NCERT
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Name the cavities in which the lungs are located:
1. pleural and abdominal cavities.
2. pericardial and thoracic cavities.
3. pleural and thoracic cavities.
4. pleural and pericardial cavities.
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
84%
From NCERT
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The sound box in humans is:
1. the larynx and is entirely made up of cartilage
2. the larynx and is entirely made up of bone
3. the muscular pharynx
4. the glottis where mucosal folds are present
1. the larynx and is entirely made up of cartilage
2. the larynx and is entirely made up of bone
3. the muscular pharynx
4. the glottis where mucosal folds are present
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
94%
From NCERT
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Consider the given two statements:
| I: | Lower invertebrates like sponges, coelenterates and flatworms exchange oxygen with carbon dioxide by simple diffusion over their entire body surface. |
| II: | Fishes are the only vertebrates that do not use lungs as respiratory organs. |
| 1. | Only I is correct | 2. | Only II is correct |
| 3. | Both I and II are correct | 4. | Both I and II are incorrect |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
54%
From NCERT
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Trachea is a straight tube extending up to the mid-thoracic cavity, which divides into a right and left primary bronchi at the level corresponding to:
1. Seventh cervical vertebra
2. Second thoracic vertebra
3. Fifth thoracic vertebra
4. Seventh thoracic vertebra
1. Seventh cervical vertebra
2. Second thoracic vertebra
3. Fifth thoracic vertebra
4. Seventh thoracic vertebra
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
92%
From NCERT
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The trachea:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | divides into two principal bronchi at the level of 7th thoracic vertebra. |
| II: | is invested by incomplete cartilaginous rings in its wall. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
80%
From NCERT
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Incomplete cartilaginous rings are seen in the walls of all the following except:
| 1. Trachea | 2. Primary bronchus |
| 3. Tertiary bronchus | 4. Respiratory bronchiole |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
79%
From NCERT
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A minimal amount of pleural fluid present in the pleural cavity:
| 1. | provides a medium for the exchange of respiratory gases |
| 2. | reduces friction between the visceral and parietal pleurae |
| 3. | provides lubrication for movements of the diaphragm |
| 4. | permits the exchange of electrolytes during respiration |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
90%
From NCERT
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Consider the given two statements:
| Statement I: | The outer pleural membrane is in close contact with the thoracic lining. |
| Statement II: | The inner pleural membrane is in contact with the lung surface. |
| Statement III: | The part starting with the external nostrils up to the terminal bronchioles constitutes the respiratory or exchange part of the respiratory system. |
| Statement IV: | The alveoli and their ducts form the conducting part of the respiratory system. |
| 1. | Statement I is correct; Statement II is correct; Statement III is correct; Statement IV is correct |
| 2. | Statement I is incorrect; Statement II is incorrect; Statement III is incorrect; Statement IV is incorrect |
| 3. | Statement I is correct; Statement II is correct; Statement III is incorrect; Statement IV is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect; Statement III is correct; Statement IV is correct |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung | Respiratory Organs |
81%
From NCERT
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