Question
During inspiration, the diaphragm
expands
shows no change
contracts and flattens
relaxes to become dome- shaped
Solution
C.
contracts and flattens
Breathing or Respiration or Ventilation is the process of moving air into and out of the lungs to facilitate gas exchange with the internal environment.
Breathing in is called inspiration or inhalation and breathing out is called expiration or exhalation. During inspiration, the diaphragm contracts putting backwards by partial flattening and increase the thoracic cavity lengthwise.
