Being Bitten

One can observe with considerable clarity how complex these moving flows can be if we are brave enough to watch an adult mosquito on our hand through a hand lens or dissecting microscope. As the mosquito's heart rapidly contracts, each pulse moves rapidly from the abdomen towards the head. At the same time, heaving movements of the internal organs, most of which do not appear to progress but remain at the segmental levels, mix the hemolymph flowing in the perivisceral cavity. As the gut distends with your blood or perhaps somebody else's if you are lucky enough, you may also see the ventral diaphragm pulsing in a posterior direction.

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