Capillary return

If, for example, we press on the skin on another part of the body (usually on the toes), then remove the finger, we can see that the blood returns to the capillaries and the skin regains its pink color. The time from the end of the pressure to the skin regaining its normal color is called capillary return. By measuring the capillary return, we determine whether our limbs are well blooded. If, for example, the vessels that supply blood to the limbs are narrowed, the capillary return will be prolonged.