Disability insurance pays you a partial amount of your regular wages if you become disabled and are unable to work. Monthly benefits usually last for a specific number of years or until you turn age 65. As a rule, benefits stop once you reach your retirement age under Social Security.
1. blood vessel-a vessel in which blood circulates. arteria, arterial blood vessel, artery-a blood vessel that carries blood from the heart to the body. vas, vessel-a tube in which a body fluid circulates.
There are three major types of blood vessels: the arteries, which carry the blood away from the heart; the capillaries, which enable the actual exchange of water and chemicals between the blood and the tissues; and the veins, which carry blood from the capillaries back toward the heart. Tunica adventitia : (the thickest layer in veins) entirely made of connective tissue. 2  It also contains nerves that supply the vessel as well as nutrient capillaries (vasa vasorum) in the larger blood vessels.