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Clothing and Body Temperature Regulation

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Clothing and Body Temperature Regulation

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Questions and Answers

Why does wet clothing lose its effectiveness in maintaining body temperature?

The wetness of the clothing traps heat, causing the body temperature to rise.

The high conductivity of water decreases the rate of heat transmission through cloth.

The wetness of the clothing acts as an insulator, preventing heat loss.

The high conductivity of water increases the rate of heat transmission through cloth. (correct)

What causes sweating according to the text?

Stimulation of the anterior hypothalamus-hypothalamic area in the brain.

Stimulation of the posterior hypothalamus-hypothalamic area in the brain.

Stimulation of the anterior hypothalamus-preoptic area in the brain. (correct)

Stimulation of the posterior hypothalamus-preoptic area in the brain.

What is reabsorbed in the duct of the sweat gland according to the text?

Watery secretion

Electrolytes (correct)

Primary protein free secretion

Acetylcholine

What characterizes the fluid secreted by the sweat gland according to the text?

It is similar to plasma and contains plasma proteins. Signup and view all the answers

What stimulates tissue expression of brown fat?

Sympathetic nerves releasing norepinephrine Signup and view all the answers

In adult human beings, how much can chemical thermogenesis increase the rate of heat production?

10% to 15% Signup and view all the answers

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 Signup and view all the answers

What is the most effective mechanism to maintain body heat control in severely cold environments?

Behavioral control of temperature Signup and view all the answers

What is the role of Thyroxine in infants for maintaining normal body temperature?

Activates uncoupling protein and increases the rate of cellular metabolism Signup and view all the answers

Where are the deep body temperature receptors mainly found?

Around the great veins in the upper abdomen and thorax Signup and view all the answers

What is the main function of the deep body temperature receptors?

Prevent low body temperature (hypothermia) Signup and view all the answers

How does chemical thermogenesis affect the rate of heat production in infants?

It can increase the rate of heat production Signup and view all the answers