text: An<unk>  is a small diameter blood vessel that extends and branches out from an artery and leads to capillaries.<unk> s have thin muscular walls (usually only one to two layers of smooth muscle) and are the primary site of vascular resistance.
  This means blood pressure in the arteries supplying the body is a result of the interaction between the cardiac output (the volume of blood the heart is pumping per minute) and the vascular resistance, usually termed total peripheral resistance by physicians and researchers.
option_0: Arteriole
option_1: Artery
option_2: Deep vein
option_3: Lymph vessel
option_4: Cardiac veins
option_5: Coronary arteries
option_6: Peripheral vein
option_7: Bleb 