Locomotion and MovementHard

Question

In rabbit the normal expiration occurs by the :-

Options

A.Contraction of the external intercostal muscles and the relaxation of the muscles of the diaphragm
B.Contraction of the internal intercostal muscles and the relaxation of the muscles of the diaphragm
C.Contraction of the internal intercostal muscles only
D.Relaxation of the muscles of the diaphragm only

Solution

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