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Which one of the following is an example of negative feedback loop in humans? |
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a) |
Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold |
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b) |
Secretion of tears after falling of sand particles into the eyes |
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c) |
Salivation of mouth at the sight of delicious food |
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d) |
Secretion of sweat glands and constriction of skin blood vessels when it is too hot |
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Which one of the following is an example of negative feedback loop in humans? |
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|
a) |
Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold |
|
b) |
Secretion of tears after falling of sand particles into the eyes |
|
c) |
Salivation of mouth at the sight of delicious food |
|
d) |
Secretion of sweat glands and constriction of skin blood vessels when it is too hot |
(a)
Skin blood vessels constrict and skeletal muscles contract due to cold is an example of negative feedback mechanism of homeostasis.