Thermoregulation. Temperature Gradient for Kingsnake. Temperature Gradient for Varanid. Basic Thermodynamics. Overall, heat gained must = heat lost. E = Q abs + M ± R ± C ± LE ± G Where Q abs = absorbed surface radiation M = heat of metabolism R = infrared radiation
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Hypothalamus is temperature sensitive element of brain.
Supplied by carotid arteries, and can therefore evaluate core body temp.
In Lipidosaurs, the Pineal eye is assoicated with the hypothalamus.
When you are cold, you 1) get goosebumps, 2) initiate shivering thermogenesis, 3) find someplace warm, or 4) put on a coat etc.Behavioral Thermoregulation
sweat, pant, take off clothing, find a cool place etc.
When a lepidosaur gets hot, it too exhibits a series of behaviors and physiological tricks.
How does the herp know when it is hot?
Set points are dependent on recent thermal history, physiological status, reproductive status, social status, age, etc.Behavioral Thermoregulation