(i) Study the given figure of respiratory passage carefully . Parts ar – InterviewSolution

InterviewSolution

1.	(i) Study the given figure of respiratory passage carefully . Parts are labelled as a,b,c,d and e. Label these parts . (ii) How many secondary bronchi are there in right and left human lung ? (iii) What is the approximatge length width of human trachea (wind pipe) ? (iv) What is the role of epiglottis? (v) In which body cavity the lungs are located ?
Answer» (i) (a) Alveolar sac (b) Secondary bronchus (c ) Alveoli (air sacs ) (d ) Bronchioles (e ) Trachea. (ii) 3 and 2 respectively (iii) 11 cm long and 2.5 cm wide (iv) It closes the glottic during swallowing to check the entry of food into wind pipe. (v) Thoracic cavity.

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