TEST BANK FOR PORTHS PATHOPHYSIOLOGY 10TH EDITION BY NORRIS

Page 1 Chapter 26: Disorders of Blood Flow in the Systemic Circulation 1. If a virus has caused inflammation resulting in endothelial dysfunction, an excessive amount of endothelins in the blood can result in A) arterial wall weakening resulting in aneurysm formation. B) release of excess fatty plaque causing numerous pulmonary emboli. C) contraction of the underlying smooth muscles within the vessels. D) overproduction of growth factors resulting in new vessel production. Ans: C Feedback: Endothelial dysfunction describes several types of potentially reversible changes in endothelial function that occur in response to environmental stimuli. Inducers of endothelial dysfunction include cytokines, bacterial, viral, and parasitic products that cause inflammation. They also influence the reactivity of underlying smooth muscle cells through production of both relaxing factors (nitric oxide) and contracting factors (e.g., endothelins). 2. A nursing instructor is explaining the role of vascular smooth muscle cells in relation to increases in systemic circulation. During discussion, which neurotransmitter is primarily responsible for contraction of the entire muscle cell layer thus resulting in decreased vessel lumen radius? A) Nitric oxide B) Adrenal glands C) Fibroblast growth factor D) Norepinephrine Ans: D Feedback: Nerve cells and circulating hormones are responsible for vasoconstriction of the vessel walls. Because they do not enter the tunica media of the blood vessel, the nerves do not synapse directly on the smooth muscle cells. Instead, they release the neurotransmitter, norepinephrine, which diffuses into the media and acts on the nearby smooth muscle cells, resulting in contraction of the entire muscle cell layer and thus reducing the radius of the vessel lumen. This increases the systemic circulation.

read more

Latest Reviews

This Document does not have reviews, purchase to review

$10.00

  1. 100% Money Back Guarantee
  2. Immediately available after payment
  3. Both online and in PDF format
  4. Secure Payment Gateway

visibility
5
download
0
Details
  • Pages 11
  • Category Test banks
  • School / University Harvard University
  • Course Nursing
  • Course Level University level
  • Year 2022
  • Keywords TEST BANK FOR PORTHS PATHOPHYSIOLOGY 10TH EDITION, NORRIS, PORTHS, PATHOPHYSIOLOGY, NURSING, NURSING TEST BANK
profile
Ellah
513 Documents uploaded.
0 Documents sold.
  •  0 Review(s)

The benefits of buying summaries with Barmerit:


Image

Guaranteed quality through customer reviews

Barmerit customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Image

Quick and easy check-out

You can quickly pay through credit card or Barmerit-credit for the summaries. There is no membership needed.

Image

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

+
After you’ve finished your payment, your purchased document will be available in ‘Purchased document’ in your Docmerit account. The documents will also be sent via e-mail. Can’t find your document there right away? Be patient, because sometimes it can take a couple minutes for the document to be processed. If the document isn’t there after five minutes, you can send us a message.
+
Send us a message to support@barmerit.com and try to explain as detailed as possible what the issue is. Hopefully, we can help you out right away and you’ll have the document in no time. If you see an error, please attach a screenshot of the error to the email, so if needed our IT department can have a look at it.
+
If you would like to see the entire document, you first have to buy it. Otherwise, you will only see a couple of selected preview pages.   unanswered

Price $10.00