Cambridge Breathing

When we breathe out, the diaphragm muscles _____________ and the intercostal muscle __________

• relax, expand
• relax, contract
• expand, relax
• contract, relax

When we breathe in, the diaphragm muscle and intercostal muscle __________ the volume in the chest, so the air pressure in side the chest is ___________

• contract, reduced
• expand, increased
• tighten, decreased
• relax, unchanged

When we breathe in, the diaphragm muscles _____________ and the intercostal muscle __________

• relax, contract
• contract, contract
• expand, relax
• contract, expand

When we breathe out, the diaphragm muscle and intercostal muscle __________ the volume in the chest, so the air pressure in side the chest is ___________

• decrease, increased
• relax, decreased
• contract, expanded
• increase, decreased

During inhalation, the air volume inside the lung is _________ than the atmospheric volume

• higher

• lower

• equal to
• unrelated

During exhalation, the air volume inside the lung is _________ than the atmospheric volume

• greater
• equal
• more
• lesser