I also received a supposed to be coming from CiTi PO BOX 790040 St. Louis MO 63179-9819.It said account ending in XXXX has been sold to Midland Credit Management, INC. Midlan...
Veins have much thinner walls, because the blood they carry is under low pressure. VEINS have valves that aid the return of blood to the heart and prevent blood from going backwards. ARTERIES do not have valves, except for the semi-lunar valves of the pulmonary artery and the aorta. ARTERIES have relatively narrow lumens, VEINS have relatively wide lumens.
There are three different types of blood vessels: arteries (which carry blood away from the heart) veins (which carry blood toward the heart) and capillaries (which carry blood from arteries to veins).So veins are a type of vessel, but not the only type.eins have valves which make them unique, (as compared to arteries or capillaries). This is to prevent blood from going in the opposite direction. Since arteries lead away fr â¦ om the heart, the blood travels through using the pressure differential.