The key difference between cutaneous and pulmonary respiration is that cutaneous respiration takes place through the skin, while pulmonary respiration takes place through the lungs.
There are two types of respiration as internal respiration and external respiration. Internal respiration refers to cellular respiration that produces energy or ATP. External respiration refers to pulmonary respiration or breathing, which involves inhalation and exhalation. Pulmonary respiration takes place in the respiratory system. It is the process of exchanging oxygen and carbon dioxide at the alveoli. Cutaneous respiration is also a type of external respiration. However, in cutaneous respiration, gaseous exchange occurs through the skin.
