Sponsored Topics. North Bethesda is a census-designated place and an unincorporated area in Montgomery County, Maryland, United States. It borders the city of Rockville, and is closely associated with the city. As an unincorporated area, North Bethesda's boundaries are not officially defined.
A blood vessel's main function is to transport blood around the body. Blood vessels also play a role in controlling your blood pressure. Blood vessels are found throughout the body. There are five main types of blood vessels: arteries, arterioles, capillaries, venules and veins.Arteries carry blood away from the heart to other organs.lood vessels also play a role in controlling your blood pressure. Blood vessels are found throughout the body. There are five main types of blood vessels: arteries, arterioles, capillaries, venules and veins. Arteries carry blood away from the heart to other organs.
1 Arteries carry blood away from the heart. 2  They divide again and again, and eventually form very tiny vessels called capillaries. 3  The capillaries gradually join up with one another to form large vessels called veins. 4  Veins carry blood towards the heart.lan of the main blood vessels in the human body. The comparison of blood vessels structure and functions. The transfer of materials between capillaries and tissue fluid. As blood enters capillaries from arterioles (small arteries), it slows down.