Column I | Column II | ||
(a) | Tidal volume | (i) | 2500-3000 mL |
(b) | Inspiratory Reserve | (ii) | 1100-1200 mL volume |
(c) | Expiratory Reserve | (iii) | 500-550 mL volume |
(d) | Residual volume | (iv) | 1000-1100 mL |
Options: | (a) | (b) | (c) | (d) |
1. | (iii) | (ii) | (i) | (iv) |
2. | (iii) | (i) | (iv) | (ii) |
3. | (i) | (iv) | (ii) | (iii) |
4. | (iv) | (iii) | (ii) | (i) |
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 is higher than the atmospheric pressure |
1. | reduce the blood supply to the brain |
2. | decrease the affinity of hemoglobin with oxygen |
3. | lead to release of bicarbonate ions by the liver |
4. | reduce the rate of heartbeat |
Asthma may be attributed to?
1. allergic reaction of the mast cells in the lungs
2. inflammation of the trachea
3. accumulation of fluid in the lungs
4. bacterial infection of the lungs
Name the pulmonary disease in which alveolar surface area involved in gas exchange is drastically reduced due to damage in the alveolar walls.
1. | Pleurisky | 2. | Emphysema |
3. | Pneumonia | 4. | Asthma |
Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs:
1. | as bicarbonate ions |
2. | in the form of dissolved gas molecules |
3. | by binding to R.B.C |
4. | as carbamino-haemoglobin |
The figure shows a diagrammatic view of the human respiratory system with labels A, B, C, and D. Select the option that gives the correct identification, main function, and/or characteristics:
1. | B-pleural membrane- surrounds ribs on both sides to provide cushion against rubbing. |
2. | C-alveoli-thin walled vascular bag-like structures for the exchange of gases. |
3. | D-lower end of the lungs-diaphragm pulls it down during inspiration. |
4. | A trachea-long tube supported by complete cartilaginous rings for conducting inspired air. |
Which one of the following is the correct statement for respiration in humans?
1. | Cigarette smoking may lead to inflammation of the bronchi |
2. | Neural signals from the pneumotaxic centre in the pons region of the brain can increase the duration of inspiration |
3. | Workers in grinding and stone-breaking industries may suffer from lung fibrosis |
4. | About 90% of carbon dioxide (CO2) is carried by haemoglobin as carbaminohaemoglobin |
Two friends are eating together at a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of:
1. | diaphragm | 2. | neck |
3. | tongue | 4. | epiglottis |