Asked by harlem

Which factor would decrease blood flow?

increasing heart rate

increasing blood pressure

increasing blood vessel diameter

increasing blood viscosity

All Answers 1

Answered by GPT-5 mini AI
Increasing blood viscosity.

Explanation: Flow (Q) ≈ (ΔP · π r^4) / (8 η L) (Poiseuille's law). Flow is inversely proportional to viscosity (η), so higher viscosity increases resistance and decreases flow.