Where does gas exchange take place? Correct Answer-Alveoli
Where does deoxygenated blood leave? Correct Answer-The right
ventricle via the right and left pulmonary arteries
What does lymphatic tissue help lungs with? Correct Answer-Parallels
vasculature
Helps remove particles and proteins from the interstitial space
Ventilation Correct Answer-Moving air from the atmosphere into the
alveoli (inhalation/exhalation)
, Diffusion Correct Answer-Moving oxygen and CO2 between the alveoli
and the pulmonary capillaries through the alveolar-capillary (AC)
membrane
Perfusion Correct Answer-Flow of blood through the pulmonary
capillary bed
Lung Compliance Correct Answer--Extent to which lungs can expand
-Collagen and elastin fibres in the lungs contribute to compliance
Ex) interstitial lung disease, pulmonary disease
Surfactant Correct Answer-Lipoprotein produced by the alveoli
-Stabilizes alveoli and helps them inflate, lowering surface tension
Airway Resistance Correct Answer-Diameter of the airways (in the
conducting pathway) directly impacts airflow resistance
ex) smoke inhalation
What impacts diffusion/gas exchange? Correct Answer-1) Thickness of
the AC membrane
i.e. HF, CHF, emphysema
2) Alveolar surface are available
i.e. atelectasis
3) Partial pressure and the solubility of gas
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.