Question

Contraction of the intercostal muscles and diaphragm cause the thoracic cavity,______and the air pressure in the lungs to________
A) expand; decrease
B) expand; increase
C) contract: increase
D) contract; decrease

Answer 1

Answer:

Option C) is the write Answer

Explanation:

y because thoracic air decrease mean

pressure of lungs will be increase

and this is the explanation

and I Hope it will Help u

Answer 2

ANSWER :

option B

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