Contraction of sternohyal muscles during breathing in frog

During contraction of a skeletal muscle :

During contraction of muscles :-

During contraction of muscles :-

Abdominal muscles play a role in breathing mainly during

Abdominal muscles play a role in breathing mainly during

The impulse for voluntary muscles during forced breathing starts in _____________.

The impulse for voluntary muscles during forced breathing starts in ...............

Which of the following help to increase the volume of the thoracic chamber during the mechanism of breathing? (a) The contraction of diaphragm (b) Contraction of external intercostal muscle (c) The uplifting of sternum (d) All of the above

During contraction of skeletal muscle Ca^(2+) bind to