BIOA02H3 Lecture Notes - Lecture 21: Rete Mirabile, Skeletal Muscle, Vasodilation
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BIOA02H3 Full Course Notes
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> e. g. wind-chill factor: evaporation - liquid becomes gas/water evaporation @ skin/respiratory system. = heat loss = release energy as heat e. g. respiratory & cutaneous evaporation. 1-3: dry heat transfer -> rate prop to body temp - environ temp (thermal relation) @ constant lv aquatic vs terrestrial = body temp = water temp vs body temp =/= air temp. Poikilothermy + ectothermy: e. g. crab (body heat derives from & re ect environ) Poikilothermy + homeothermy: e. g. benthic sh (@ thermally stable environ i. e. Poikilothermy + homeothermy: e. g. benthic sh (@ thermally stable environ i. e. deep sea -> stable body temp) Heterothermy = poikilothermy + endothermy: e. g. hummingbird (night-time torpor) Endothermy + homeothermy: e. g. human (use metab heat to maintain constant body temp) Endothermy + ectothermy: e. g. kangaroo rat (body heat derives from metab & environ) (thermoregulatory control) Set point: body temp that hypothalamus works to maintain.
