Class Notes (836,414)
Canada (509,777)
Biology (2,229)
BIO220H1 (244)
Matthews (6)
Lecture

respiratory system 1

4 Pages
72 Views
Unlock Document

Department
Biology
Course
BIO220H1
Professor
Matthews
Semester
Summer

Description
CO2 in mouth = 0 > 0100 X 747 47 = 0 Pressure in mouth PiCO2 = 0 mm hg But mitochondria relaease C02 in mouth = 46 mm Hg 46 mm Hg move from blood stream into lung = 40 mm Hg >> mouth 46-40 mm Hg less than O2 = 60 mmHg CO2 == magic molecule == move readily no need much pressure fr. Blood stream to lung How we carry Co2 and O2 to brain? Determine air composition of air we breath Hose utilized trapped there and draw sample of air in syringe use apparatus to determine gas last portion of air we breath is alveolar air similar in composition of gas in blood = 40 mmHg in alveolar air. Each of us set pt. of C02 hold CO2 and establish pressure : CO2 in alveolar vol. same to arterial blood PACO2 = 40 mmHg (Alveolar pressure) PaCO2 = 40 mmHg (Arterial) Blood not perfect bec. Some blood passes to lungs. Lung expand get air in surfactant released by alveolar cells that inc.distensibility of lung so not too difficult for lung to open up and facilitates breathing wout it serious situation www.notesolution.com
More Less

Related notes for BIO220H1

Log In


OR

Join OneClass

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

Sign up

Join to view


OR

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.


Submit