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Tardigrade
Question
Biology
Which one of the following is an example of negative feedback loop in humans ?
Q. Which one of the following is an example of negative feedback loop in humans ?
2646
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AIPMT
AIPMT 2007
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A
Secretion of sweat glands and constriction of skin blood vessels when it is too hot
15%
B
Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold
52%
C
Secretion of tears after falling of sand particles into the eye
20%
D
Salivation of mouth at the sight of delicious food
13%
Solution:
When the set point of hypothalamus is distributed by high temperature, it stimulates casodilation and sweating while in low temperature there is vasoconstriction and shivering.