Venules

Venules are small blood vessels that connect capillaries—the tiny vessels where oxygen and nutrients are exchanged with tissues—to larger veins that carry blood back to the heart. They serve as crucial pathways in the circulatory system, helping to collect deoxygenated blood from tissues and direct it toward the veins. Venules have thin walls and are part of the body's mechanism for maintaining blood flow and regulating immune responses. Their role is essential in ensuring efficient circulation and proper functioning of the cardiovascular system.