Question

Doppler ultrasound can be used to measure the speed of blood in the body. If there is a partial constriction of an artery, where would you expect blood speed to be greatest: at or after the constriction? What are the two distinct causes of higher resistance in the constriction?

Answer 1

Blood speed is greatest at the constriction of a partially constricted artery. The two causes of higher resistance in the constriction are narrowing of the arterial lumen and turbulence.

Step-by-step explanation:

When there is a partial constriction of an artery, the blood speed is greatest at the constriction. The two distinct causes of higher resistance in the constriction are narrowing of the arterial lumen and turbulence.