AExternal intercostals muscles contracts and Diaphragm relaxes
BExternal intercostals muscles contracts and Diaphragm flattens
CInternal intercostals muscles relax and Diaphragm relaxes
DInternal intercostals muscles contracts and Diaphragm flattens
Related Questions:
Which of the following statements about respiratory system in human is/are true?
Choose the CORRECT option.
(i) The volume of air that will remain in the lungs after a normal expiration is called residual volume.
(ii) Volume of air inspired or expired during a normal respiration is called, tidal volume.
(iii) The maximum volume of air a person can breathe in after a forced expiration is called vital capacity.
