Answer:
Pressure increases.
Explanation:
When an artery gets a constricted region due to plaque, the pressure in this region increases as compared to the pressure in an un-constricted region where the pressure is normal because in the non-constricted region there is no narrow artery and the blood flows normally. When the artery becomes narrow due to deposition of any materials, the blood pressure increases so that's why we can say that the pressure increases in the artery in constricted region.
A constricted region in an artery will cause blood to flow with more pressure as compared to unconstricted regions.
Remember that pressure is the ratio of force and area.
Mathematically; Pressure = Force/Area.
This means that the higher the area, the lower the pressure and vice versa granted that the force remains constant.
A constriction in an artery due to plaque will reduce the area of the artery through which blood flows. Thus, the blood in this area will flow with more pressure compared to the unconstricted regions on the same artery.
More on pressure and areas can be found here: https://brainly.com/question/3967722?referrer=searchResults
