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Question

Which of the following occurs during inspiration?



Correct Answer
A

Diaphragm contracts and flattens

Your Answer
B

Intrathoracic pressure does not change

Your Answer
C

External intercostals relax

Your Answer
D

Thoracic volume decreases


Solution

The correct option is A

Diaphragm contracts and flattens


This increases the thoracic volume and facilitates inhalation and the inflow of gases.

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