👉 The term "mesobranchial" refers to a type of vessel that connects two or more vessels in the body. These vessels are called mesothelial cells, and they play a crucial role in the blood-brain barrier, which is an important structure that helps protect the brain from harmful substances like toxins and infections. Mesobranchial vessels also contain a special protein called chondroitin sulfate, which is essential for their function. These vessels are responsible for transporting nutrients and oxygen