Effect of Reduced Diameter of Artery on Blood Pressure

When the diameter of an artery is reduced, it can have a significant impact on blood pressure. The correct option is (b) blood pressure will increase.

Explanation:

Arteries and Blood Pressure:
Arteries are blood vessels that carry oxygen-rich blood from the heart to various parts of the body. When the heart beats, it pumps blood into the arteries, creating pressure in the arteries. This pressure is known as blood pressure.

Factors Affecting Blood Pressure:
Several factors can affect blood pressure, including the diameter of the arteries. The narrower the artery, the higher the blood pressure will be. This is because the same amount of blood must be pumped through a smaller space, which increases the pressure.

Consequences of Reduced Artery Diameter:
If the diameter of an artery is reduced, it can cause several health problems. One of the most common consequences is high blood pressure or hypertension. This can lead to heart disease, stroke, and other complications.

Reduced artery diameter can be caused by several factors, including a buildup of plaque or fatty deposits on the walls of the artery. This is known as atherosclerosis. Other factors that can contribute to reduced artery diameter include smoking, high cholesterol levels, and high blood pressure.

Treatment for Reduced Artery Diameter:
Treatment for reduced artery diameter depends on the underlying cause. Lifestyle changes such as quitting smoking, eating a healthy diet, and exercising regularly can help improve artery health and reduce the risk of high blood pressure. In some cases, medication or surgery may be necessary to treat the underlying condition.

Conclusion:
In conclusion, when the diameter of an artery is reduced, it can lead to high blood pressure and other health problems. It is essential to maintain a healthy lifestyle and seek medical treatment if necessary to prevent complications from reduced artery diameter.

A decreased diameter means more of the blood contacts the vessel wall, and resistance increases, subsequently decreasing flow. The influence of lumen diameter on resistance is dramatic: A slight increase or decrease in diameter causes a huge decrease or increase in resistance.