Which of the following would result in an increase in blood flow?

A. An increase in vein length
B. An increase in blood viscosity
C. An increase in blood pressure
D. A decrease in blood vessel diameter

Respuesta :

Hi!

The scenario which would result in an increase of blood flow would have to be:
C. An increase in blood pressure.

Blood flow is affected by both blood pressure and vessel resistance!

Good luck.
aachen

Blood flow or hemodynamics can be defined as the dynamics of the blood flow. There are four main factors that affect the blood flow in the body. These factors include viscosity, blood pressure, length of the vessels, and diameter of the vessels.

  • Viscosity is inversely related to blood flow. An increase in viscosity will result in a decrease in blood flow.
  • The length of the vein is also inversely related to the blood flow. An increase in vein length will result in a decreased blood flow due to increased resistance.
  • The diameter of the blood vessel is also inversely related to blood flow. It means a decrease in the diameter of the vessel will result in increased blood flow
  • When the blood pressure increases, the cardiac output or the blood flow is decreased.

Hence, the blood flow in the blood vessel will increase with the decrease in the diameter of the blood vessel.

Hence, the correct answer is option d.

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