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Perfusion

Definition

noun, plural: perfusions

(physiology) The act of perfusing, such as the pouring over or through of a fluid by way of the blood vessels or lymphatic system to the organ or a tissue


Supplement

Perfusion is a natural process. It is when the body delivers blood through the capillary bed into the biological tissue. But it is also done artificially, particularly in medicine. In this regard, perfusion is done by pumping a fluid, such as a drug, by way of the blood vessels in order to reach an organ or a tissue.

Perfusion is checked in a patient in order to verify if there is sufficient perfusion. Otherwise, it is done by a medical practitioner to ensure adequate perfusion of tissues. Terms such as hypoperfusion and hyperperfusion are used to describe perfusion levels. Hypoperfusion refers to the condition wherein there is a decreased perfusion (blood flow) in an organ or tissue. Hyperperfusion, in contrast, is one in which there is an increased perfusion.


Word origin: Latin perfūsiōn-, of perfūsiō (a drenching)

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some bloody questions

... demands of a tissue. In response the body can compensate by releasing Vasodilators which act(s) on the arterioles to restore the correct level of perfusion. is that correct plzzzzzzzzzzzzz help thanks

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by zak
Mon Nov 25, 2013 8:09 pm
 
Forum: Human Biology
Topic: some bloody questions
Replies: 4
Views: 2803

some bloody questions

... demands of a tissue. In response the body can compensate by releasing ……………….. which act(s) on the …………………to restore the correct level of perfusion. ATP / oxygen / protein / glucose Vasoconstriction / Atherosclerosis / Ischaemia Vasodilators / endothelin / glyceryl trinitrate Arterioles ...

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by zak
Mon Nov 25, 2013 3:02 pm
 
Forum: Human Biology
Topic: some bloody questions
Replies: 4
Views: 2803

Re: Ventilation - Perfusion Coupling

Thanks anyway. The exam is in an hour and I still don't "get it," but I'll just have to hope for the best!

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by lalajane
Mon May 23, 2011 11:19 am
 
Forum: Cell Biology
Topic: Ventilation - Perfusion Coupling
Replies: 2
Views: 5237

Ventilation - Perfusion Coupling

... much ground to cover that I'm going to have to skip it and move on. I understand that there must be a close match between ventilation and and perfusion for gas exchange to be efficient, but things get a bit foggy after that. "In alveoli where ventilation is inadequate, PO2 is inadequate. ...

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by lalajane
Tue May 17, 2011 7:10 pm
 
Forum: Cell Biology
Topic: Ventilation - Perfusion Coupling
Replies: 2
Views: 5237

Re: Gluten-free and Vaccines

... (21). The ability of this PEP to cleave the 33-mer gliadin peptide was evaluated in vitro (Fig. 4A) and in vivo using the rat intestinal perfusion model (Fig. 4B). In the latter assay, the synergistic effect of PEP and BBM peptidases was evident. Moreover, the T cell stimulatory potential ...

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by tmerezko
Tue Jun 22, 2010 6:08 pm
 
Forum: General Discussion
Topic: Gluten-free and Vaccines
Replies: 7
Views: 17491
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