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    Could anyone explain why do we need so many mechanoreceptors(for example meissner's receptors and merke disk receptors)??
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    Is it a dinosaur? :holmes:
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    (Original post by ks2624)
    Could anyone explain why do we need so many mechanoreceptors(for example meissner's receptors and merke disk receptors)??
    So many as in, so many different types? Well they all perform a slightly different function - some sense change in pressure (i.e. are 'fast-adapting') whereas some sense constant pressure. Sensitivity is different also, relating to how 'deep' the structures are positioned (to an extent). There are lots of factors involved when you want to both be able to have fine touch in your fingers as well as sense when you have been stabbed with a needle - one receptor would not do.
 
 
 

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