Why can't I notice it by mosquito, is it a special way to be a mosquito?

It is summer

We are going to sleep in mosquito sonatas again

Why

Sometimes mosquitoes can feel painful

Sometimes there is no

Because it is not the whole skin that stimulates the brain, but the pain in the skin.The painful feeling in the skin is actually a kind of nerve ending, which is distributed in the skin nipples of the skin. The size is only about 30 ~ 100 μm, which is 0.03 ~ 0.1mm.The distribution density in the skin in different parts is not uniform. The most densely distributed parts are the tip of the fingertips and the toe tip of the toe, with a density of about 100 to 200/c㎡, which is about 10 to 14 per centimeter.Therefore, in the position of the feeling of unsomed (that is, the sensor sparse), there is actually a considerable gap between the adjacent pain sensors, which can fully accommodate the mosquito ports with a diameter of hundreds of nanometer [3].Therefore, if the mosquito's mouth is poked on the pain sensor, we will feel "bitten by biting"; if the mosquito just inserts the gap between the painful sensor, then we will not be when we are dingled.Conditioning pain.(Institute of Physics of the Chinese Academy of Sciences)

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