Question

Consider the given statements and select the option that correctly states them as true(T) or false(F).
a. Increased asthmatic attacks in certain seasons are related to inhalation of seasonal pollen.

b. The part of brain where vomit centre is present, also regulates the respiratory rhythm according to the need of the body.

c. Cigarette smoking causes inflammation of trachea and bronchi.

d. Expiration is initiated due to contraction of diaphragm.

• A. a-F b-T c-F d-T
• B. a-F b-F c-T d-T
• C. a-T b-T c-F d-F
• D. a-T b-T c-T d-T

Answer 1

The correct option is C a-T b-T c-F d-F

Smoking can cause lung disease by damaging airways and the small air sacs (alveoli) found in the lungs. Lung diseases caused by smoking include COPD, which includes emphysema and chronic bronchitis. Cigarette smoking causes most cases of lung cancer.
The diaphragm and external intercostal muscles contract during inspiration, increasing the volume of the thoracic cage. As a result, the intrapulmonary pressure falls below air pressure, resulting in inspiration. The relaxation of the diaphragm causes exhalation to begin