At the time of inspiration, _________ takes place.(a) relaxation in external intercostal muscle(b) relaxation in diaphragm(c) contraction in diaphragm(d) no effect on diaphragmThis question was addressed to me in an interview for job.This intriguing question comes from Mechanism of Breathing-1 in chapter Breathing and Exchange of Gases of Biology – Class 11

At the time of inspiration, _________ takes place.(a) relaxation in ex

1.	At the time of inspiration, _________ takes place.(a) relaxation in external intercostal muscle(b) relaxation in diaphragm(c) contraction in diaphragm(d) no effect on diaphragmThis question was addressed to me in an interview for job.This intriguing question comes from Mechanism of Breathing-1 in chapter Breathing and Exchange of Gases of Biology – Class 11
Answer» The correct option is (c) contraction in DIAPHRAGM Explanation: Inspiration is an ACTIVE process in which MUSCLE contraction do take place. At the time of inspiration, contraction in diaphragm and external intercostal muscles TAKES place.

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