If we consider blood as a suspension of RBCs in a Newtonian fluid, the shear forces experienced by the RBCs during blood flow would
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- Randomize the orientation of blood cells
- Align RBCs along their long axes with streamlines
- Align RBCs along their short axes with streamlines
- Create an equal distribution of RBCs aligned in their long and short axes
The Correct Option is B
Solution and Explanation
- Option (A) is incorrect because RBCs do not randomize in normal flow conditions; instead, they align with the flow direction.
- Option (B) is correct because the RBCs align with their long axes, reducing friction and allowing for easier movement through the blood vessels.
- Option (C) is incorrect because the short axis of the RBCs does not align with the flow, as this would increase resistance.
- Option (D) is incorrect because RBCs do not randomly orient; they align with their long axes to minimize resistance.
Thus, the correct answer is (B) Align RBCs along their long axes with streamlines.
Final Answer: (B)
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