Suppose that you, with your fingers from one hand, pinch a finger in your other hand for some 5-10 minutes. That finger will then become white because of lack of blood. Then you release your pinching and that finger will become very red for a few minutes before returning to a normal color. How do we call this phenomenon?

In the case of autoregulation of blood delivery to a tissue, which factor plays the most important role?

If you hear a noise in a blood vessel through your stethoscope, what is the cause of this noise?

In calculating the blood flow in a blood vessel, which factor is the most important?