Question

Which of the following produces negative
pressure in your thoracic cavity?
1) Exhalation
2) Contraction of diaphragm muscles
3) Relaxation of the muscles between the ribs
4) Contraction of the muscles in the walls of
stomach​

Answer 1

3,,,RELAXATION OF THE MUSCLES BETWEEN THE RIBS☑✅

Answer 2

Answer:-

$the \: following \: produces \: negative \: pressure \: in \: the \: thoracic \: cavity - \\ \: \: \: 2)contraction \: of \: daiphragm \: muscles \: \\ \: \: \: 4)contraction \: of \: the \: muscles \: in \: the \: walls \: of \: stomach.$

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