Question

Statement 1: Lungs become empty after forceful expiration
Statement 2: The forcefully exhaled air is called residual volume of air.

(1) Only statement 1 is true
(2) Only statement 2 is true
(3) Both statement 1 and statement 2 are true
(4) Both statement 1 and statement 2 are false
PLZ THE CORRECT ANSWER

Answer 1

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Statement 1: Lungs become empty after forceful expiration

Statement 2: The forcefully exhaled air is called residual volume of air.

(1) Only statement 1 is true

(2) Only statement 2 is true

(3) Both statement 1 and statement 2 are true

(4) Both statement 1 and statement 2 are false

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(1) Only statement 1 is true.

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Answer 2

Answer:

Option (4): Both statement 1 and 2 are false

Explanation:

Statement 1: Lungs are never completely emptied. It always contain a certain volume of air called residual volume of air after any mass expiration.

Statement 2: The exhaled air is not residual volume of air. Residual volume of air is the air left in the lungs after a mass exhalation/expiration.

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