Biology, asked by sahilbargir778, 7 months ago

................. muscles contract when the
external intercostal muscles contract
a. Internal abdominal
b. Jaw
c. Muscles in bronchial walls
d. Diaphragm​

Answers

Answered by sangeetamondal971
2

Diaphragm

the internal intercostal muscles relax and the external intercostal muscles contract, pulling the ribcage upwards and outwards. the diaphragm contracts, pulling downwards

Answered by Abhinab08
1

Explanation:

thnx ( ◜‿◝ )♡

Diaphragm muscles contract when the external intercostal muscles contract

and it occur during inhaltion.

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