OVERVIEW OF THE IMMUNE SYSTEM
LYMPHATIC TISSUES AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Thermal homeostasis in humans is mainly achieved by regulation of the level of blood flow in the skin. Accordingly, blood perfusion through the vessels in the skin surface constantly adjusts to the skin temperature (1), and the skin temperature and heat loss rate changes as a result.
Detailed explanation-2: -Blood vessels feeding the skin also dilate, which allows warm blood to flow to the skin surface. This helps remove heat from the body core.
Detailed explanation-3: -To make up for the lack of blood flow, the body will rush blood to the main organs, such as the heart and lungs, and away from the extremities. This will cause the temperature in your extremities to lower, leading to that cold sensation you may be experiencing.