HSCI 100 Lecture Notes - Lecture 12: Lymphatic Vessel, Extracellular Fluid, Blood Vessel
Blood is refreshed in the lungs, kidneys, intestines, liver. Lymphatic vessels collect excess luid surrounding tissues: generate blood pressure, transport blood & other components, exchange nutrients, wastes at capillaries, regulate blood low. Heart arteries arterioles capillaries venules veins heart. Outer connective tissues (not as thick as arteries/arterioles) Form bed vessels where exchange with body cells occur b/c of osmotic & blood pressure. Valves prevent backlow: arterial end blood pressure > osmotic pressures (net pressure out, venous end osmotic pressure > blood pressure (net pressure in) Dumps luid back into the bloodstream at the subclavian near the shoulders. Lymphatic vessels vessels through which lymph lows; one-way valves. Large muscle organ consisting of cardiac muscle tissue (myocardium) 2 sets of valves: semilunar & av (cuspid) Pulmonary circuit (right: body heart lungs. Left ventricles more muscular because it pumps blood to the entire body. Arterioles more muscular to withstand the higher pressure exerted on them.