In comparison to blood veins, how are lymph veins different?

Lymph veins, also known as lymphatic vessels, are indeed larger in diameter and have thinner walls compared to blood veins. This structural difference is essential for their function. Lymphatic vessels are designed to transport lymph, a clear fluid that contains immune cells and waste products, back to the bloodstream. Their larger diameter facilitates the flow of lymph, while the thinner walls allow for easier absorption of interstitial fluid that collects in tissues.

Additionally, lymphatic vessels are equipped with valves to prevent the backflow of lymph, especially since they work against gravity and rely on muscle movement to propel lymph through the system. However, their primary distinguishing feature compared to blood veins is the larger diameter and thinner walls, which accommodate the different physiological roles that lymph and blood play in the body.