PHYSIOLOGY
ENDOCRINOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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keep body temperature the same as the external temperature
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decrease body temperature
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increase body temperature
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regulate blood pressure
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Detailed explanation-1: -Shivering-nerve impulses are sent by the hypothalamus to the skeletal muscles to bring about rapid contractions that generate heat. Shivering therefore helps raise the body temperature. Increase in metabolic rate-the liver produces extra heat in order to raise the temperature of the body.
Detailed explanation-2: -Shivering is muscle activity that generates heat and warms the body. Similarly, some insects vibrate their wings for a while before flight, heating the muscles to the temperature at which they work best. When an animal shivers in the cold, a large amount of heat is generated in the muscles.
Detailed explanation-3: -When exposed to cold temperatures, your body begins to lose heat faster than it is produced. Prolonged exposure to cold will eventually use up your body’s stored energy. The result is hypothermia, or abnormally low body temperature.
Detailed explanation-4: -If the air is 100% humidified or if the body is in water, body temperature rises any time the environmental temperature rises above 34.4 C (94 F). If the air is dry and sufficient convection air currents are flowing, a person can withstand many hours of air temperature at 54.4 C (130 F).