NEET Biology question
Consider the following statements each with two blanks. (i) Diaphragm contracts to help in (1) while the contraction of abdominal muscles helps in (2). (ii) Vital capacity of trained athletes is (3) than that of non-athletes while the vital capacity of non-smokers is (4) than that of smokers. (iii) Alveolar O is (5) than the venous O while arterial O is (6) than the alveolar O. Which of the following options gives the correct fill ups for the respective blanks numbered from (1) to (6) in the above statements?
Solution
Diaphragm contraction assists inspiration (not expiration), contraction of the abdominal muscles assists forced expiration, trained athletes and non-smokers both have a higher (not lower) vital capacity than non-athletes/smokers, alveolar pO (~104 mm Hg) is higher than
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