Lecture notes
Arterial pathology
- Module
- Medicine
- Institution
- Queens University Belfast (QUB)
Lecture notes of 12 pages for the course Medicine at QUB (Pathology)
[Show more]
Seller
Follow
Content preview
ARTERIAL PATHOLOGYSchaemia vs Infarction
Resulting is chaemia or infarction depends on many factors
1 Nature of blood
supply The availability of an alternative
blood supply is an important factor E g Lungs have a dual
pulmonary and bronchial artery blood supply and Liver has
dual hepaticartery and portal vein circulation relatively
resistant to infarction VS Renal 1Splenic circulations
where end arterial vascular obstruction
usually leads to
tissue death
2 Rate
of developement of occlusion How fast the occlusion
develops determines whether blood vessels can grow to by pass
the occlusion Thus if SLOW there is time to develop alternative
, perfusionpathways collateral circulations
3 Vulnerability of tissue to hypoxia Different cells have
different vulnerability to deprivation of blood flow
Neurones irrevers able damage after 3 4 minutes
Myocardial cells die after 20 30 minutes of ischaemia
Fibroblasts many hours
4 Oxygen content of blood In an anaemia pt there is T
susceptibility to hypoxia as the blood carries less O2
Examples of infarction
Cerebral Liquefactivenecrosis results in the
transfo mation
of the tissue into a liquid viscous mass Occurs
in CNS due to lack of structural framework in neural tissue
Ml Coagulative necrosis Protein denaturation is
predominant necrotic process as enzyme degradationonly
plays a small role tissues may remain preserved for days
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 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 caustin2536. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £2.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now