Summary
Summary Topic 7 Thermoregulation
Edexcel Biology Topic 7 Thermoregulation
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ThermoregulationLove temperature
body
stable 37 5 %
is
very
.
↳ 0 52 temperature
S.I units
.
higher than oral
bodytemperateallowsenzyme-control
a
-
optimum rate
↳ collisions and denaturation
enzyme
-
metabolic rate
Endotherms regulate heir own
body temperature
respiration -
release heat into
body
Ectoterms -
Environment controls the temperature
heat loss via radiation unless in water (conduction
Hypokalamus-controls and detects temperature
(internal
Thermoreceptors in
hyponalamus
Thermoreceptors skin /externall
sensory
-
in neurone
takes action to
potential hypothalamus
-
During gover white blood cells cells release
lymphotines which resets core body
temperature higher .
Heut 9win centre and heat loss cute
(too cold) (too hot
Action potentials to leat loss centre via
sensory
Action to
effectors by
>
Neurones potentials
-
motor neurones
↳ smoot muscles in anterioles
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