100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
NWHSU PNS - EXAM 3 Questions and Answers (100% Pass) $13.49   Add to cart

Exam (elaborations)

NWHSU PNS - EXAM 3 Questions and Answers (100% Pass)

 3 views  0 purchase
  • Course
  • NWHSU
  • Institution
  • NWHSU

NWHSU PNS - EXAM 3 Questions and Answers (100% Pass)

Preview 4 out of 41  pages

  • October 29, 2024
  • 41
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • NWHSU
  • NWHSU
avatar-seller
ExamArsenal
1|Page | © copyright 2024/2025 | Grade A+




NWHSU PNS - EXAM 3 Questions
and Answers (100% Pass)
Counteracts Morphine - opioid narcotics.


✓ Narcan / naloxone




Transmitters which cause FAST potentials, and what site do they work at?


✓ -ACh @ Nicotinic Cholinergic sites

✓ -Glutamate @ NMDA & AMPA sites

✓ -GABA @ GABAa sites




NMDA vs AMPA receptors


✓ Both are like Na/K pumps, but NMDA also let's Ca++ in. AMPA may

amplify NMDA.




Is M2 part of direct or indirect (second messenger) system? Slow/fast?


✓ Indirect (G-protein coupled receptor)

✓ -Slow




CN X will have (positive/negative) chronotropic and ionotropic effect.




Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

✓ Negative - lower heart rate and contractility.




A sIPSP will do what to the heart?


✓ lower rate and contractility.




Which nerve and side is primarily responsible for maintaining resting heart

rate?


✓ Right Vagus.




In a g-coupled receptor system, it is common for the end of the chain to

activate a protein kinase A, which causes this type of potential

______________, by doing this to the membrane ________________.




What channel needs to open for this to happen?


✓ sIPSP by phosphorylating (adding phosphates) to the inside of the

membrane.



✓ NO CHANNEL IS NECESSARY IN THIS SPECIFIC EXAMPLE!




What do all slow potentials require?




Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+

Do all of these result in a membrane potential change?


✓ A second messenger is needed.



✓ Not all 2nd messengers result in change in potential.




Epinephrine is this class of molecule:


✓ catecholamine




PK-A stands for


✓ protein kinase a




The response from PK-A is (+ or -)


✓ +++ excitatory




Beta 1 (________) receptors do what? They are mostly in this spot:


✓ (adrenergic)

✓ increase heart rate, mostly on the AV node.




The AV is dominated by _______ effect


The SA node is dominated by _________ effect.


Master01 | October, 2024/2025 | Latest update

, 1|Page | © copyright 2024/2025 | Grade A+




Choose autonomic response.


✓ The AV is dominated by __sympathetic__ effect



✓ The SA node is dominated by ____parasympathetic_____ effect.




(T/F)


All 2nd messengers result in slow potentials


✓ False. A b-1 receptor causes contraction, for example by acting

INTRAcellularly.




Main examples of 2nd messenger systems causing:


sIPSP


sEPSP


✓ sIPSP - M2

✓ sEPSP - Substance P




Other than potentials, what can 2nd messengers do?




Master01 | October, 2024/2025 | Latest update

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 ExamArsenal. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $13.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

82871 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$13.49
  • (0)
  Add to cart