If we are too cold, blood is withdrawn from the limbs to where?

Which cold induced condition has the symptoms of freezing of tissue and possible need for amputation? Group of answer choicesTrench FootCold rashesFrostbiteHypothermia

Which cold induced condition is signaled by a rapid loss of core body temperature? Group of answer choicesTrench FootHypothermiaFrostbiteCold rashes

Name the process involved in the maintenance of constant body temperature that causes an decreased blood flow to the capillaries close to the surface of the skin by decreasing the diameter of the arterioles that supply them.

Describe the double circulation of blood in human beings. Why is it necessary?

At what temperature should the human body be maintained?Around 37°C Around 25°C Around 40°C Around 35°C 2Where in the body is your core temperature monitored and controlled?MusclesSkinSpinal cordThermoregulatory centre in the brain3What happens during vasoconstriction? The blood vessels that supply your skin capillaries become narrowerThe blood vessels move closer to the skin surfaceThe skin capillaries constrictThe blood vessels that supply your skin capillaries become wider4How do vasodilation and sweating help to reduce body temperature?By causing the muscles to contractBy increasing the transfer of energy in the form of heat from the skin to the environmentBy causing the body hairs to stand on endBy reducing the transfer of energy in the form of heat from the skin to the environment5Why do the hairs on our body stand on end when we are cold? To prevent vasodilationTo aid the evaporation of sweatTo prevent air trapping under themTo allow air to become trapped under them6How does shivering help to raise body temperature? It requires lots of respiration which generates heat It prevents sweatingIt causes vasoconstrictionIt causes vasodilation