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Q. No.In breathing:
1.
Contraction of internal costal muscles leads to inhalation
2.
Contraction of diaphragm increases the volume of thoracic chamber in dorso-ventral axis
3.
Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure
4.
The residual volume of the lungs averages 2500 ml to 3000 ml
Subtopic: Respiratory System: Pulmonary Ventilation |
82%
Level 1: 80%+
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Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver _____________ml of O2 to the tissues.
1. 10 ml
2. 2 ml
3. 5 ml
4. 4 ml
Subtopic: Respiratory System: Transport of Gases |
86%
Level 1: 80%+
NEET - 2022
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Which of the following is not the function of conducting part of respiratory system?
| 1. | Provides surface for diffusion of O2 and CO2 |
| 2. | It clears inhaled air from foreign particles |
| 3. | Inhaled air is humidified |
| 4. | Temperature of inhaled air is brought to body temperature |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
85%
Level 1: 80%+
NEET - 2022
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NEET 2026 - Target Batch - Vital
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Which of the following disorders represents decrease in respiratory surface due to damaged alveolar walls?
1. Hypocapnia
2. Bronchitis
3. Asthma
4. Emphysema
Subtopic: Respiratory Disorders: Part 1 |
90%
Level 1: 80%+
NEET - 2022
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In the regulation of respiration, a chemosensitive area adjacent to the rhythm centre in the medulla region of the brain, is highly sensitive to:
1. \(HCO^-_3\)
2. \(CO_2\)
3. \(O_2\)
4. \(N_2\)
Subtopic: Respiratory System: Regulation of Respiration |
80%
Level 1: 80%+
NEET - 2022
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When you take a deep breath, your stomach moves out because
1. swallowing air increases the volume of the thoracic cavity
2. your stomach shouldn’t move out when you take a deep breath because you want the volume of your chest cavity to increase, not your abdominal cavity
3. contracting your abdominal muscles pushes your stomach out, generating negative pressure in your lungs.
4. when your diaphragm contracts, it moves down, pressing your abdominal cavity out.
1. swallowing air increases the volume of the thoracic cavity
2. your stomach shouldn’t move out when you take a deep breath because you want the volume of your chest cavity to increase, not your abdominal cavity
3. contracting your abdominal muscles pushes your stomach out, generating negative pressure in your lungs.
4. when your diaphragm contracts, it moves down, pressing your abdominal cavity out.
Subtopic: Respiratory System: Exchange of Gases |
Level 3: 35%-60%
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A: In mammals –ve pressure breathing takes place.
R: Inspiration can occurs if the transpulmonary pressure is less than the atmospheric pressurea
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
R: Inspiration can occurs if the transpulmonary pressure is less than the atmospheric pressurea
In the following questions a statement of assertion (A) is followed by a statement of reason (R).
1. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
2. If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2)
3. If Assertion is true statement but Reason is false, then mark (3)
4. If both Assertion and Reason are false statements, then mark (4)
Subtopic: Respiratory System: Exchange of Gases |
76%
Level 2: 60%+
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Values of partial pressure of oxygen and carbon dioxide in alveolar air are 104 mm Hg and 40 mm Hg respectively. Similar values in the venous blood are:
1. 104 mm Hg and 40 mm Hg
2. 40 mm Hg and 45 mm Hg
3. 46 mm Hg and 37 mm Hg
4. 120 mm Hg and 60 mm Hg
1. 104 mm Hg and 40 mm Hg
2. 40 mm Hg and 45 mm Hg
3. 46 mm Hg and 37 mm Hg
4. 120 mm Hg and 60 mm Hg
Subtopic: Respiratory System: Exchange of Gases |
88%
Level 1: 80%+
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Arrange in the correct sequence in respect of respiration:
Choose the correct answer from the options given below:
1. A > B > C > D > E
2. A > C > D > B > E
3. D > B > C > E > A
4. A > D > C > B > E
| A. | Breathing or pulmonary ventilation by which air is drawn in and CO2 rich air is released out |
| B. | Diffusion of O2 and CO2 between blood and tissue |
| C. | Transport of gases by the blood |
| D. | Diffusion of O2 and CO2 across alveolar membrane |
| E. | Utilization of O2 by the cells for catabolic reactions and resultant release of CO2 |
1. A > B > C > D > E
2. A > C > D > B > E
3. D > B > C > E > A
4. A > D > C > B > E
Subtopic: Respiratory System: Pulmonary Ventilation |
74%
Level 2: 60%+
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Which of the following statements are correct with respect to vital capacity?
Choose the most appropriate answer from the options given below:
| (a) | It includes ERV, TV and IRV |
| (b) | Total volume of air a person can inspire after a normal expiration |
| (c) | The maximum volume of air a person can breathe in after forced expiration |
| (d) | It includes ERV, RV and IRV. |
| (e) | The maximum volume of air a person can breathe out after a forced inspiration. |
| 1. | (b), (d) and (e) | 2. | (a), (c) and (d) |
| 3. | (a), (c) and (e) | 4. | (a) and (e) |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
74%
Level 2: 60%+
NEET - 2022
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NEET 2026 - Target Batch - Vital
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