About The Respiratory System [Science Blog 1]

Let us talk about the RESPIRATORY SYSTEM. Iam going to talk about the funtion of the respiartory system:The windpipe branches into two air tubes ,one in each lung. These air tubes branch into many smaller tubes that end in millons of air sacs. These air sacs are surrounded by many tiny blood vessels. Oxygen in the air that is breathed in passes from the air sacs into the blood. Cardon dioxide passes out from the blood into the air sacs and is breathed out.Things involved in a respairtory system: windpipe, lungs, air tubes and nose. Good night! zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz [ Please send a comment.]