Explanation: In the general circulation, the highest blood pressure is found in the aorta and the lowest blood pressure is in the vena cava.

As shown in the figure, the aorta and arteries have the highest pressure. The mean aortic pressure (solid red line) is about 90 mmHg in a resting individual with normal arterial pressures. The mean blood pressure does not fall very much as the blood flows down the aorta and through large distributing arteries.

Arterioles have the most increase in resistance and cause the largest decrease in blood pressure. The constriction of arterioles increases resistance, which causes a decrease in blood flow to downstream capillaries and a larger decrease in blood pressure.

The more rounded the lumen, the less surface area the blood encounters, and the less resistance the vessel offers. Vasoconstriction increases pressure within a vein as it does in an artery, but in veins, the increased pressure increases flow.

Mean blood pressure decreases as circulating blood moves away from the heart through arteries, capillaries, and veins due to viscous loss of energy. Mean blood pressure decreases during circulation, although most of this decrease occurs along the small arteries and arterioles.

Blood pressure (BP), sometimes referred to as arterial blood pressure, is the pressure exerted by circulating blood upon the walls of blood vessels, and is one of the principal vital signs. All levels of arterial pressure put mechanical stress on the arterial walls.

Even moderate forms of low blood pressure can cause dizziness, weakness, fainting and a risk of injury from falls. And severely low blood pressure can deprive your body of enough oxygen to carry out its functions, leading to damage to your heart and brain.

Blood pressure increases with increased cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and rigidity of vessel walls. Blood pressure decreases with decreased cardiac output, peripheral vascular resistance, volume of blood, viscosity of blood and elasticity of vessel walls.

Foods high in salt, sugar, and saturated or trans fats can increase blood pressure and damage your heart health. By avoiding these foods, you can keep your blood pressure in check. A diet full of fruits, vegetables, whole grains, and lean protein can help keep your heart healthy.

Here’s what you can do:

1. Eat healthy foods. Eat a heart-healthy diet.
2. Decrease the salt in your diet. Aim to limit sodium to less than 2,300 milligrams (mg) a day or less.
3. Maintain a healthy weight.
4. Increase physical activity.
5. Limit alcohol.
6. Don’t smoke.
7. Manage stress.
8. Monitor your blood pressure at home.