Air flow, Boyle's law, pneumothorax, muscles of inspiration and breathing, lung compliance, surfactant, airway resistance, regulation of bronchi radius, diseases increasing airway resistance

6 Pages
Unlock Document

Biomedical Science
BMS 360
Douglas Ishii

20 AprilAir FlowAir flow FPR where R is airway resistanceFPPRalvatmP aka P is the difference between the pressure of air in the atmosphere and the rspressure of air in the alveoliAirflow is always down the air pressure gradientBetween breaths PP F is 0 and there is no airflowalvatmInspiration PP F is negative and airflow goes into lungsalvatmExpiration When PP F is positive and airflow goes out of lungsalvatmFigure 138Boyles law states that the pressure of a fixed number of gas molecules is inversely proportional to the volume of the containerBoyles Law and Air FlowV x PK constant at a constant temperature and constant number of gas moleculesShows pressure and volume are inversely relatedPressure is number of molecules striking a surface per unit timeWhen chest wall expands V of the lungs increase consequently P must decreaseP in this case is PAir flows into the alveoli inspiration because PPalvalvatmWhen the chest wall contracts V of the lungs decrease and P must increaseAir moves out of the alveoli because PPalvatmFig 1310 RestingTable 133 Determinants of lung volumeConvention P0atm
More Less

Related notes for BMS 360

Log In


Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.