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We humans do have built-in alarm detector to sense threats, just like mouse |
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Knowledge Base
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Written by Team Josh
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Monday, 25 August 2008 |
Do you know how we get alert as soon as a threat comes near us? We have a built-in alarm system to alert us quickly. A new research has suggested that mammals, including humans, have a built-in alarm detector in the tip of the nose for sniffing out danger.
The tiny sensor, discovered in mice, is used to pick up chemical warning signals sent by fellow animals in distress. Rats have a microscopic ball of cells in the nose called the Grueneberg ganglion, which catches this signal.
The researchers then compared how mice with and without their Grueneberg ganglia responded to alarm pheromones.
“The normal mouse immediately gets scared and goes to the corner of the box and freezes,” said study co-author Marie-Christine Broillet.
But mice without the ganglia carried on as before, seemingly unaware of the danger signals.
The study advances the understanding of how body cells and molecules function together within the nervous system.
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Last Updated ( Monday, 25 August 2008 )
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