Understanding the Rheopectic Properties of Blood: Fact or Fiction?

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Discussion Overview

The discussion revolves around the rheopectic properties of blood, specifically questioning whether blood can be classified as a rheopectic fluid. Participants explore the definitions and characteristics of non-Newtonian fluids, particularly focusing on the terms rheopectic and pseudoplastic, and whether these classifications can coexist in the context of blood.

Discussion Character

  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant expresses confusion about the classification of blood as a rheopectic fluid, seeking clarification on its properties.
  • Another participant questions the compatibility of the terms rheopectic and pseudoplastic, suggesting that they may be mutually exclusive.
  • A participant admits to having limited understanding of the subject, particularly regarding the pseudoplastic nature of blood.
  • Some participants reference external sources, indicating that blood may not be rheopectic while suggesting that synovial fluids exhibit such properties.
  • Concerns are raised about the lack of references supporting the claim that blood is rheopectic, leading to doubts about its classification.
  • One participant suggests asking the original expert for a reference to clarify the claim about blood's rheopectic nature.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether blood is rheopectic. Multiple competing views remain, with some suggesting it is not rheopectic and others questioning the definitions involved.

Contextual Notes

Participants express uncertainty regarding the definitions of rheopectic and pseudoplastic fluids, and there is a lack of clarity on the survival characteristics that might justify blood having rheopectic properties.

Valentina Chianese
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Hello everyone, I need your help.

A teacher once told me that blood is a non-Newtonian, rheopectic, pseudo plastic fluid.
I get the non-Newtonian/pseudo plastic part, but I can't understand why blood is rheopectic...is it or not?
Thanks
 
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Valentina Chianese said:
rheopectic, pseudo plastic fluid.
Aren't those terms mutually exclusive?
You should look them up.
 
My understanding of physics is close to 0, I had serious problems with the pseudo plastic part alone so I'm not able to go further by myself...
 
Valentina Chianese said:
I can't understand why blood is rheopectic...is it or not?
What have you found with your Google searching? I found this pretty quickly, which seems to imply that blood is not but synovial fluids (lubrication in your body's joints) are:

https://en.wikipedia.org/wiki/Rheopecty
Examples of rheopectic fluids include gypsum pastes and printer inks. In the body synovial fluid exhibits the extraordinary property of inverse thixotropy or rheopexy.[2]

Besides, what survival characteristic would be a reason for blood to have this property?
 
berkeman said:
What have you found with your Google searching? I found this pretty quickly, which seems to imply that blood is not but synovial fluids (lubrication in your body's joints) are:

https://en.wikipedia.org/wiki/RheopectyBesides, what survival characteristic would be a reason for blood to have this property?
Yes I found that, it was the firts result. Also, I found absolutely nothing about blood being rheopectic, which seems to imply that it just isn't. And that's why I'm asking directly in this forum. I'm still doubtful because my comprehension of the subject is almost 0 so I have to rely on faith (faith on the absence of references about blood being rheopectic implying it isn't) or faith in the expert that told me it is. I hoped someone could explain to me in a simple manner why it is or why it isn't.
 
Valentina Chianese said:
or faith in the expert that told me it is.
Maybe ask them for a reference?
 
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