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describe and explain how changes in the surface blood vessel leads to cooling of the body in hot conditions.
When the outside temperature drops below 60º F, the body needs to reverse the process and retain its internally generated heat. This is accomplished by a process called vasoconstriction. [ Vasoconstriction is the restriction of blood flow to the skin surface by contraction of blood vessels. Since the body’s organs must always have a flow of blood, vasoconstriction is applied only to those vessels carrying heat to the skin’s surface. ]
Expert answered|debnjerry|Points 4662|
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Asked 10/12/2010 2:38:54 PM
Updated 6/26/2023 10:47:57 AM
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Changes in the surface blood vessels, such as vasodilation, in hot conditions lead to cooling of the body through enhanced heat dissipation. Vasodilation increases the blood flow to the skin's surface, allowing more heat to be transferred from the body to the environment through radiation and convection, thereby promoting a cooling effect.

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Added 6/26/2023 10:47:57 AM
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Rated bad by RosemarieT, Rated good by RosemarieT
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