Physiology 3120 Lecture Notes - Lecture 6: Acute Respiratory Distress Syndrome, Obstructive Lung Disease, Pulmonary Function Testing

82 views13 pages

Document Summary

Restrictive vs obstructive lung disease: asthma. Blood gas barrier is very thing and has a very large surface area. Increased pco2 sends signal to cause vasoconstriction (diverts blood to areas where fresh gas is coming in) Lung tries to limit airflow where there is no blood flow. Physical environment of the lung: negative intrapleural pressure. Air in intrapleural space (air leakage into the intrapleural space) Small spontaneous pneumothorax may resolve without treatment. Treatment may include insertion of a chest tube. Occurs more often in women, people who are tall and skinny, and smokers. Result: lung is continuously exposed to inhaled particles, bacteria and other pollutants. Depending on the size, particles may deposit in larger airways (larger particles) or in the smaller airways and even in alveoli. Occurs according to two basic mechanisms: mucus (are then swept up by epithelial cells lining the airways and can be expelled out or swallowed, alveolar macrophages.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents