What effect does anaphoresis have on the skin regarding blood vessels?

Anaphoresis is a method used in electrolysis where a direct current is applied to the skin, resulting in the introduction of ions into the tissue. One of the physiological responses to this process is the dilation of blood vessels, or vasodilation. This occurs because the electrical current stimulates the nerves and surrounding tissues, leading to an increase in blood flow to the area.

Vasodilation has several benefits for the skin, including enhanced nutrient delivery, improved oxygenation, and enhanced removal of metabolic waste. This increase in blood flow can also contribute to a temporary feeling of warmth and can promote healing processes, which is particularly favorable in skin treatments.

Thus, when considering the effect of anaphoresis on blood vessels, the correct answer is that it causes dilation of blood vessels, facilitating better circulation and overall benefits for the skin's health and appearance.