Exam (elaborations)
BIO 270 HYND EXAM 3 WITH SOLUTIONS
- Course
- Institution
BIO 270 HYND EXAM 3 WITH SOLUTIONS
[Show more]
Content preview
BIO 270 HYND EXAM 3 WITH SOLUTIONSYou just got done exercising. How do you expect our curve to shift? Correct Ans-To right to
unload O2
Which of following is true regarding Co2
a. It can bind with hemoglobin
b. it can be found dissolved in our blood
c. 20x more soluble than O2
d. All of above Correct Ans-d. All of above
Is the pressure for Co2 higher in our lungs or air? Correct Ans-Co2 pressure is higher in
lungs so we can breathe out co2
What are the functions of surfactant? Correct Ans-Decrease hydrogen binding in water
molecules
Increase compliance
Allows lungs to come back slowly
(recoil is lungs coming back, when lungs are at low volume water attracts each other, makes it
hard to inflate then, surfactant will reduce binding of water)
, BIO 270 HYND EXAM 3 WITH SOLUTIONS
Recoil depends on 2 factors: Correct Ans-1) Highly elastic connective tissue in lungs
2) Alveolar surface tension (H mol. like to be close)
Treatment of Asthma
Albuterol: mimics sympathetic signal
Anti-Cholinergics: block parasympathetic signals Correct Ans-
Muscle activity during ACTIVE expiration Correct Ans-Contraction of internal intercostals
Contraction of abdominals
-flattened ribs and sternum
Muscle activity during inspiration Correct Ans-Contraction of external intercostals
Contraction of diaphragm
Boyle's Law: Correct Ans-pressure exerted by a gas is inversely proportional with the
volume of the container
How is surfactant made? Correct Ans-secreted by type 2 alveolar cells
What activates plasminogen to plasmin? Correct Ans-TPA
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 TheeGrades. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now