A Horizontal Section of an Artery Narrows from a Diameter

question 13

Multiple Choice

A horizontal section of an artery narrows from a diameter of 8.0 mm to a diameter of 6.0 mm. What is the pressure difference between the wider section and the narrower? That is, what is P_wide − P_narrow? The blood flows in the wider section at 48 cm/s. Take blood plasma to have a density of 1,025 kg/m³ and ignore viscosity.

• A) 370 Pa
• B) 255 Pa
• C) 780 Pa
• D) 210 Pa

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