1. how is air drwan into the lungs and forced out of the lungs?
2.how do pressure gradient play a role an dhow are these pressure crreated?
Your exact answers are at the following link:
http://www.leeds.ac.uk/chb/lectures/anatomy7.html
2.how do pressure gradient play a role an dhow are these pressure crreated?
Your exact answers are at the following link:
http://www.leeds.ac.uk/chb/lectures/anatomy7.html