Capillaries:The smallest blood vessels in the body's circulatory system, designed for the exchange of water, oxygen, carbon dioxide, and many other nutrient and waste chemical substances between blood and surrounding tissues.
Microcirculation: Refers to the circulation of blood in the smallest blood vessels within organ systems, including capillaries, arterioles, and venules.
Blood Pressure:The force exerted by circulating blood on the walls of blood vessels, crucial for maintaining tissue perfusion