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3 Cards in this Set
- Front
- Back
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List the main effects of immediate exercise on the body
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-Inc respiration by harder working muscles
- Inc CO2 in blood -Chemoreceptor sense this and CV centres stimulates a symp release of AD in Heart and lungs -|vagal input -Inc venous return via SMP -Arteioles widen so decrease BP -Blood is shunted from non necessary systems; gut to leg (vasomotor change) - Inc resp=inc heat=warmer blood -Blood shunted to skin to dec temp -Sweat lowers temp by evaporation |
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What are the long term benefits from exercise
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-Inc CO
-Inc Recovery rate -Dec pulse; Inc LV ejection/relaxation -Improved neurohumoral response -Physiologic hypertrophy -Inc Capillary number -Inc LV, thickness and strength -Chambers all increase to accomodate inc volume |
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Go over some cardiac changes during exercise
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Symp response inc HR
Inc Venous return=Inc Pre-Load = Inc SV Inc in contraction strength as Inc blood return (Starlings law) |
