Which does not occur on normal inspiration?
A. Contraction in diaphragm
B. Contraction in external intercoastal muscle
C. Contraction in internal intercoastal muscle
D. Sternum moves upward
Answer:C
Which does not occur on normal inspiration?
A. Contraction in diaphragm B. Contraction in external intercoastal muscle C. Contraction in internal intercoastal muscle D. Sternum moves upward