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. Then blood vessels connect to form a region of diffuse vascular supply it is called an anastomosis (pl. anastomoses).
In an adult the blood vessels could reach 100,000 miles long. The blood vessels carry blood between the heart, different tissues, and organs of the body. There are three types of blood vessels: arteries, veins, and capillaries. These blood vessels have the ability to expand to allow more blood to flow through them. They can also contract to help control the flow of blood Arteries: Arteries are blood vessels that supply blood to the tissues of body. They carry the blood away from heart and because the blood inside them is oxygenated, they appear red in color.  1 Arteries are elastic vessels that transport blood away from the heart. 2  Pulmonary arteries carry blood from the heart to the lungs where oxygen is picked up by red blood cells. 3  Systemic arteries deliver blood to the rest of the body. 4  Veins. 5  Veins are elastic vessels that transport blood to the heart. The inner blood vessel layer is formed of endothelium. In capillaries and sinusoids, endothelium comprises the majority of the vessel. Blood vessel endothelium is continuous with the inner tissue lining of organs such as the brain, lungs, skin, and heart. In the heart, this inner layer is called the endocardium. Arteries The arteries are elastic, muscular tubes that carry the blood from the left ventricle of the heart to the capillaries. The walls of the arteries are thicker than the other vessels because of the high pressure. The blood vessels carry blood between the heart, different tissues, and organs of the body. There are three types of blood vessels: arteries, veins, and The following diagram summarises the sequence of blood flow through the heart, arteries, arterioles, capillaries, venules, veins, then back to the heart: The following diagram summarises the structural differences between different types of blood vessels. More information about this also follows in the next section.  1 Arteries. 2  Arteries are elastic vessels that transport blood away from the heart. 3  Pulmonary arteries carry blood from the heart to the lungs where oxygen is picked up by red blood cells. 4  Systemic arteries deliver blood to the rest of the body. 5  Veins. 6  Veins are elastic vessels that transport blood to the heart. The inner blood vessel layer is formed of endothelium. In capillaries and sinusoids, endothelium comprises the majority of the vessel. Blood vessel endothelium is continuous with the inner tissue lining of organs such as the brain, lungs, skin, and heart. In the heart, this inner layer is called the endocardium. The cardiovascular, or circulatory, system in humans is composed of the heart and the blood. vessels--arteries, veins, and capillaries. Its purpose is to provide nutrients and oxygen to the tissues and to remove wastes from them.  The three types are the arteries, veins, and capillaries. Arteries are the vessels that carry blood away from your heart to the different parts of your body. The pulmonary ar … teries take blood to the lungs to pick up oxygen. The three types of blood vessels are Capillaries Veins, and Arteries.   Capillaries are the network of small blood vessels clost to the skin. they are responsible for bring … ing oxygen from the Arteries to the muscles.   Arteries are the big vessels that run from the heart to the rest of the body 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. When blood vessels connect to form a region of diffuse vascular supply it is called an anastomosis (pl. anastomoses). Anastomoses provide critical alternative routes for blood to flow in case of blockages. There is a layer of muscle surrounding the arteries and the veins which help contract and expand the vessels.
https://answers.yahoo.com/question/index?qid=20080520130543AA6npH3 http://www.mananatomy.com/basic-anatomy/arteries http://biology.about.com/od/humananatomybiology/ss/blood_vessels.htm https://answers.yahoo.com/question/index?qid=20080520130543AA6npH3 http://www.ivyroses.com/HumanBody/Blood/Blood_Vessels.php http://biology.about.com/od/humananatomybiology/ss/blood_vessels.htm http://www.compuhigh.com/demo/anat11.htm http://www.answers.com/Q/What_are_the_characteristics_of_the_three_main_type_of_blood_vessels https://en.wikipedia.org/wiki/Blood_vessel
characteristics of blood vessels