O-LevelBiologyRespiration5090/12 · Oct/Nov 2023 · Q141 Mark
Which table shows muscle movement during inspiration? [Table 14.1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Atable showing diaphragm (contract X, relax ✓), external intercostal muscles (contract ✓, relax X), internal intercostal muscles (contract X, relax ✓)
Btable showing diaphragm (contract ✓, relax X), external intercostal muscles (contract ✓, relax X), internal intercostal muscles (contract X, relax ✓)
Ctable showing diaphragm (contract ✓, relax X), external intercostal muscles (contract X, relax ✓), internal intercostal muscles (contract ✓, relax X)
Dtable showing diaphragm (contract ✓, relax X), external intercostal muscles (contract X, relax ✓), internal intercostal muscles (contract X, relax ✓)
✓ Correct answer
B: table showing diaphragm (contract ✓, relax X), external intercostal muscles (contract ✓, relax X), internal intercostal muscles (contract X, relax ✓)
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