Parts of the model represent different parts of the respiratory system as shown here. The model, which is air tight, represents the thorax, and air is only able to enter via the glass tube which ...

The CDC notes that these trends suggest that respiratory illness cases will likely continue to rise over the winter months.

The cardio-respiratory system works together to get oxygen to the working muscles and remove carbon dioxide from the body. During exercise the muscles need more oxygen in order to contract and ...