👉 Pterostigmal is a term used in the context of anatomy and physiology to describe the process by which blood vessels, particularly those located within the skin or mucous membranes, dilate and expand. It involves the continuous flow of blood through these vessels, as well as their ability to contract when blood pressure increases or decreases. Pterostigmal dilation is a normal physiological response that helps regulate body temperature in mammals. It occurs as a result of a decrease in blood volume, which triggers