intercostal muscles
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
The muscles between the ribs that help expand and contract the chest during breathing.
Test yourself
Which word fits the gap? "The _____ contract to lift the ribcage upward and outward when you breathe in."
Answer: intercostal muscles
In your own words, what does "intercostal muscles" mean?
The muscles between the ribs that help expand and contract the chest during breathing.
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