Understanding the Rheopectic Properties of Blood: Fact or Fiction?

In summary, 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 for the information.
  • #1
Valentina Chianese
3
0
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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  • #2
Valentina Chianese said:
rheopectic, pseudo plastic fluid.
Aren't those terms mutually exclusive?
You should look them up.
 
  • #3
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...
 
  • #4
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?
 
  • #5
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.
 
  • #6
Valentina Chianese said:
or faith in the expert that told me it is.
Maybe ask them for a reference?
 
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FAQ: Understanding the Rheopectic Properties of Blood: Fact or Fiction?

What are rheopectic properties?

Rheopectic properties refer to a type of non-Newtonian behavior where a fluid's viscosity increases over time under constant shear stress. This is the opposite of thixotropy, where viscosity decreases over time under shear.

Does blood exhibit rheopectic behavior?

Blood is generally considered a non-Newtonian fluid, primarily exhibiting shear-thinning and viscoelastic properties. While there are limited studies suggesting transient rheopectic behavior under specific conditions, it is not widely accepted as a defining characteristic of blood.

Why is understanding the rheopectic properties of blood important?

Understanding any potential rheopectic properties of blood could have significant implications for medical diagnostics and treatments, especially in understanding blood flow dynamics in various physiological and pathological conditions. However, more research is needed to establish its relevance.

What methods are used to study the rheopectic properties of blood?

Researchers use rheometers and viscometers to study the flow properties of blood under controlled conditions. Advanced imaging techniques and computational modeling are also employed to analyze how blood behaves under different shear stresses over time.

Is the concept of blood's rheopectic properties widely accepted in the scientific community?

The concept of blood exhibiting rheopectic properties is not widely accepted and remains a topic of debate. Most studies focus on its shear-thinning and viscoelastic properties. More evidence and research are needed to validate any claims of rheopectic behavior in blood.

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