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pogonyaev
3 years ago
13

Consider the model of temperature regulation in humans. Instead of an increase in temperature, as seen here, imagine that the hu

man bod temperature drops. Explain how this model would most likely change in response to a drop in temperature? A) Signals from the hypothalamus would stop B) The blood vessels move up and down in the skin C) Vasodilation would be replaced by vasoconstriction D) The vasodilation step in the model would include shivering
Medicine
2 answers:
Setler79 [48]3 years ago
3 0

Answer: C) Vasodilation would be replaced by vasoconstriction

Explanation:

The blood vessels supplies blood to the skin can dilate this is called as vasodilation process. This process allows the transfer of more amount of heat from the blood to the skin where the heat can be lost through the air. The blood vessels can shrink again this is called as vasoconstriction. This process will prevent the loss of heat from the skin and the temperature of the body will be returned to the normal.  

If the human blood temperature drops vasodilation process will be prevented as more loss of heat can lead to excess cooling of the body for example frostbite or even death. The frostbite is an injury which is caused due to freezing of the skin as well as the underlying tissues.

egoroff_w [7]3 years ago
3 0

Answer:Option C

Explanation:

In case the temperature of the body goes too low and it feels chills then the vessels of the body constrict in order so that there is a less flow of blood and the skin and core body conserve the temperature of the body.

This is a negative feed back mechanism in order to maintain the temperature of the body.

There are some more responses of the body in order to maintain the temperature of body. The shivering starts, the skin and the capillaries becomes more Skinner in order to restrict the blood flow.

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