The effect of the contraction of the muscles of the diaphragm is that
A.
The volume of the thoracic cavity increase
B.
more carbon dioxide is expelled through the nostrils
C.
rib cage is drawn inwards
D.
the intercostal muscle becomes relaxed
Answer: A
To see detailed solution to this question and thousands of other questions offline, download TestDriller SSCE. Practice rigorously for WASSCE, enjoy educational games, get chief examiners' reports, summary of WAEC literature books, compete with your peers, win prizes and more.