Comparison between Lymph Vessels and Veins.
Veins have fewer internal valves than lymphatic vessels.
collecting vessels
Subclavian veins
the walls of lymphatic vessels are similar to those of veins
The lymphatic System- Consists of lymphatic vessels i.e. Veins and capillaries are an example. (hope this helps and I had the exact question in a worksheet and it was right good luck)
the pulmonary artery, pulmonary veins, bronchial vessels and lymphatic vessels
collecting vessels
Lymphatics resemble veins in structure but have thinner walls and more valves.
They have valves so that they can move lymphatic fluid much the same as veins by skeletal muscle contraction.
Thickness of the walls.
The larger lymphatic vessels are most similar in structure to veins, as they both have valves to prevent backflow and are composed of three layers: tunica intima, tunica media, and tunica adventitia. However, lymphatic vessels have thinner walls and lack a continuous layer of smooth muscle like veins do.
The valves help counter the effect of gravity by preventing the fluid in the vessels from "falling down."