What is the direct cause of blood pressure?

Question

Quizplus · Accepted Answer

Blood pressure is directly caused by blood volume, which is the amount of blood circulating through the body. As blood volume increases, there is more fluid pushing against the walls of the blood vessels, leading to an increase in blood pressure. This is why conditions like dehydration can lead to low blood pressure, while conditions like high blood volume (such as in heart failure) can lead to high blood pressure. Strength of the heart contraction (B) and heart rate (C) can indirectly affect blood pressure, but they are not the direct cause. Blood viscosity (D) can also affect blood pressure, but it is not the primary direct cause.

What Is the Direct Cause of Blood Pressure