Tag: medical leech
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The leech makes a comeback
Meryl SigatonCity of Silay, Philippines Leeches (hirudo medicinalis) are invertebrates of the phylum Annelida whose main diet is blood. They are hermaphrodites and carnivorous, having 700 species that thrive in a variety of environments. Most of them are small, weighing less than 1–1.5 g before feeding, but some may reach a length of twelve centimeters.…
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The central nervous system of the leech
Leeches are worms of the subspecies Hirudinea that live in oceans, rivers, or on land. They consist of several parts or segments; a front area designated as the head or anterior brain, the middle part consisting of segments each containing a nerve ganglion as well as other organs, and the hind part which has the…