Little big fly

Little big fly

In this photo taken by Cristina Morera Albert, of the CMRB, a house fly is observed with a scanning electron microscope (SEM). This type of microscope uses electrons and electromagnetic lenses to “illuminate” a sample allowing visualising the sample in 3D at high magnification.

In this case, we observe the compound eyes of the fly and its thorax, which is divided into three segments: prothorax, mesothorax and metathorax. The thorax is covered by hairs called bristles, which are always arranged in the same place and have a sensory function. One can also see the wings, which protrude from the second segment, with their nerves.

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