NEETZoology-Breathing and Exchange of Gases
NEET Zoology Mechanism of Breathing MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which of the following muscles help to increase the volume of thoracic cavity?
A
Diaphragm and EICM
B
EICM and IICM
C
Diaphragm and Abdominal muscles
D
IICM and abdominal muscles
Correct Answer
Option A
Detailed Explanation
The diaphragm and external intercostal muscles (EICM) contract to increase thoracic volume during inhalation.
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