The process of respiration also releases energy in the form of heat. The heat is used to maintain the relatively high body temperature of mammals and birds.

Respiration by living organisms can be investigated by carrying out experiments to show the production of carbon dioxide and heat. Limewater can be used to detect carbon dioxide. Breathing in ...

Respiratory tract diseases are illnesses that affect components of the respiratory system, including the nasal passages, the bronchi and the lungs. They range from acute infections, such as ...

However, the structural and functional properties of the lung and airways do not change in response to repetitive physical activity and, in elite athletes, the pulmonary system may become a limiting ...