-
Active Metabolism
The metabolic acidity that generates additional heat as a by prodouct of the additional energy requirements of muscular work
-
eAllen's Rule
A tenet that, widely distributed homeothermic species, population in cold climates will tend to have shorter extremeties than those in mild climates.
-
Apocrince Sweat Glands:
Glands in mammals that areas associated with hair follicles and secrete a fluid in lipids and proteins.
-
Basal Metablism
The metabolic activity that is generated by animals during complete rest
-
Bergmann's Rule
A tenet that, in a widely distributed, homeothermic species, populations in colder enfironments will tend to be bigger than those in mild climates.
-
Cold induced vasodilator
Dilation of peripheral blood vessels during exposure to cold
-
Conduction
The transfer of heat between two solid objects in physical contact
-
Convection:
The transfer of heat between two sold objects in physical contact
-
Countercurrent heat exchange
A heat exchange between arteries and veins that warms venous blood that has cooled peripheral areas
-
Evaporation:
The conversion of a liquid to a gas, a process that requires energy and thus a loss of heat from the surrounding area.
-
Habitation
The process of becoming less reactive to any particular stimulus or stress.
-
Isolative adaptation
An adaptation to cold or heat stress involving body size, form, and compoosition as well as regulation of blood flow.
-
Metabolic adaptation
An adaptation to cold or stress involving basal metabolsim as well as metabolic heat generation from muscular activity.
-
Non Shivering thermogenesis
An adaptation occuring in some mammals, and possibly human, in which the hormone norepinephrine causes a general increase in the basal metabolism rate due to dchanges in lipid metabolism.
-
Radiation
The exchange of electromagnetic energy between objects in range of each other
-
Shivering
Involuntary muscular activity that is induced by skin receptors that are activated by a lowering of skin temperature
-
Thermoregulation
The maintenance of a balance between heat gain and loss.
-
Vasoconstriction
The narrowing of superficial blood vessel, which reduces the rate heat loss from the body to the air.
-
Vasodilation
The expansion of superficial blood vessels, which increases the rate of heat loss sfrom the body to the air.
|
|