There are a number of similarities and differences between the model and the actual respiratory system. Structure Similarities Differences Glass tube/trachea Allows air to pass through ...

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 ...

Maybe you've been in a room recently with someone who's coughing, but they say "I promise it's not COVID." While it's important to still be cautious about COVID-19, there are other viral ...