12 Questions
Why does wet clothing lose its effectiveness in maintaining body temperature?
The high conductivity of water increases the rate of heat transmission through cloth.
What causes sweating according to the text?
Stimulation of the anterior hypothalamus-preoptic area in the brain.
What is reabsorbed in the duct of the sweat gland according to the text?
Electrolytes
What characterizes the fluid secreted by the sweat gland according to the text?
It is similar to plasma and contains plasma proteins.
What stimulates tissue expression of brown fat?
Sympathetic nerves releasing norepinephrine
In adult human beings, how much can chemical thermogenesis increase the rate of heat production?
10% to 15%
What elicits the feeling of cold discomfort when the body becomes too cold?
Signals from the skin and probably also from some deep body receptors
What is the most effective mechanism to maintain body heat control in severely cold environments?
Behavioral control of temperature
What is the role of Thyroxine in infants for maintaining normal body temperature?
Activates uncoupling protein and increases the rate of cellular metabolism
Where are the deep body temperature receptors mainly found?
Around the great veins in the upper abdomen and thorax
What is the main function of the deep body temperature receptors?
Prevent low body temperature (hypothermia)
How does chemical thermogenesis affect the rate of heat production in infants?
It can increase the rate of heat production
Explore the impact of wet clothing on body temperature regulation and the relationship between sweating and clothing insulation. Understand how the conductivity of water affects heat transmission through cloth and its implications on maintaining body temperature.
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