Q776
When the diaphragm and external intercostal muscles contract,
A.
The volume of the thorax decreases
B.
The volume of the lungs decreases
C.
The volume of the thorax increases
AnswerD.
The lungs shrink
Answer: Option C
Solution
Answer: Option C
Solution:
When the diaphragm and external intercostal muscles contract, the volume of the thorax increases.