Hiccup occurs due to

In rabbits,expiration occurs by the:

The diagram above shows which phenomenon of respiration?

An increase in pulmonary volume decreases the intra-pulmonary pressure to less than the atmospheric pressure,which forces the air from outside to move into the lungs. This process is known as:

During inspiration,the volume of thoracic cavity increases because of

The most important function of the diaphragm in mammals is: