👉 Postarterial refers to a region of tissue that is not directly connected to the bloodstream or other organs, but instead lies outside the body's normal circulatory system. This type of tissue can be found in many different parts of the body, including the lungs, liver, kidneys, and heart. Postarterial tissues are often involved in various processes such as metabolism, immune function, and hormone production, and they play an important role in maintaining homeostasis within the body.