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Q. No.Inspiration is initiated by:
1.
the contraction of diaphragm which increases the volume of thoracic chamber in the antero-posterior axis.
2.
the contraction of diaphragm which increases the volume of thoracic chamber in the dorso-ventral axis.
3.
the contraction of external inter-costal muscles which increases the volume of the thoracic chamber in the dorso-ventral axis.
4.
the contraction of external inter-costal muscles which increases the volume of the thoracic chamber in the antero-posterior axis.
Subtopic: Â Respiratory System: Pulmonary Ventilation |
 78%
From NCERT
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The thoracic chamber is formed:
Select the correct match from the codes given:
| Column I | Column II | ||
| A. | Dorsally by | P. | The Sternum |
| B. | Ventrally by | Q. | The vertebral column |
| C. | Laterally by | R. | The rib cage |
| D. | Inferiorly by | S. | The Diaphragm |
| A | B | C | D | |
| 1. | Q | P | R | S |
| 2. | Q | P | S | R |
| 3. | P | Q | R | S |
| 4. | P | Q | S | R |
Subtopic: Â Respiratory System: Trachea & Basic Anatomy of Lung |
 88%
From NCERT
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Regarding the regulation of respiration by brain:
| I: | The rhythm center is located in the medulla oblongata. |
| II: | Pneumotaxic center is located in the mid brain |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Â Respiratory System: Regulation of Respiration |
 74%
From NCERT
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Which respiratory disorder is characterised by inflammation of bronchi and bronchioles and wheezing?
1. Tuberculosis
2. Emphysema
3. Pulmonary hypertension
4. Asthma
1. Tuberculosis
2. Emphysema
3. Pulmonary hypertension
4. Asthma
Subtopic: Â Respiratory Disorders: Part 1 |Â Respiratory Disorders: Part 2 |
 90%
From NCERT
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The oxyhemoglobin dissociation curve is shifted to the right by:
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
| I: | increased temperature |
| II: | increased pH |
| III: | increased carbon dioxide |
2. Only I and III
3. Only II and III
4. I, II and III
Subtopic: Â Respiratory System: Transport of Gases |
 68%
From NCERT
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Carbon dioxide is not carried in the human blood as:
1. dissolved gas
2. bicarbonate ion
3. carbaminohemoglobin
4. carboxyhemoglobin
1. dissolved gas
2. bicarbonate ion
3. carbaminohemoglobin
4. carboxyhemoglobin
Subtopic: Â Respiratory System: Transport of Gases |
 80%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | The pO2 of the blood normally has no direct effect on respiration. |
| Statement II: | The pO2 of the oxygenated blood is higher than the pO2 of the alveolar air. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
 52%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | Intrapulmonary pressure must be greater than atmospheric pressure for air to enter the lungs. |
| Statement II: | Intrapulmonary pressure must be lower than atmospheric pressure for air to be exhaled out of the lungs. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Transport of Gases Part 1 |Â Respiratory System: Transport of Gases Part 2 |Â Respiratory System: Transport of Gases |
 89%
From NCERT
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Consider the two statements:
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
| Statement I: | The alveoli have ciliated cells in them to help expel dust particles that make it this far down into the respiratory tract. |
| Statement II: | Gas exchange between the lungs and the blood, and between the blood and tissue fluid, is an active transport process. |
1. Statement I is correct: Statement II is incorrect
2. Statement I is incorrect: Statement II is correct
3. Statement I is correct: Statement II is correct
4. Statement I is incorrect: Statement II is incorrect
Subtopic: Â Respiratory System: Trachea & Basic Anatomy of Lung |
 55%
From NCERT
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| Assertion (A): | Steroids are very important in the management of bronchial asthma. |
| Reason (R): | Bronchial asthma is an inflammatory disorder. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False and (R) is True. |
Subtopic: Â Respiratory Disorders: Part 1 |
 54%
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