BMS 301 Study Guide - Quiz Guide: Parasympathetic Nervous System, Sympathetic Nervous System, Afterload
1 Mar 2019
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Note: general concepts from exam 1 may also appear on this exam. Increase radius = decrease in resistance = increase blood flow. Inversely proportional to both vessel length and viscosity. Blood pressure the pressure (force) exerted by circulating blood upon the walls of blood vessels: what are the factors that influence blood pressure, cardiac output, blood volume, peripheral resistance. Map = dp : have to divide by 3 because more time spent in diastole than systole. Diffusion: o2 and nutrients from blood to tissues, co2 and metabolic wastes from tissue to blood. Types of capillaries: continuous capillaries leaky (skeletal muscles) and nonleaky (brain, fenestrated have large windows that allow molecules to pass through (kidneys, Gi tract: sinusoidal contain large cavities that allow whole cells to pass through (bone marrow, spleen) Intrinsic active hyperemia, reactive hyperemia, myogenic response, local response: active hyperemia. Increase arterial pressure increase in blood flow, arterioles compensate by vasoconstriction to decrease blood flow and prevent damage.
