Scorpion
A scorpion is an invertebrate animal with eight legs belonging to the order Scorpiones in the class Arachnida.
The scorpion body is divided into 2 main segments the cephalothroax and the abdomen, the cephalothroax consists of the prosoma and the abdomen of the mesosoma and the metasoma;
Prosoma: the “head” of the scorpion comprising the carapace, eyes, chelicera (mouth parts) and pedipalps (claw).
Mesosoma: The main body of the scorpion contains its lungs, digestive tract and sexual organs. The 4 pairs of walking legs (a common feature of the arachnids) are attached to this section as well as the pectines (featherlike sensory organs). The mesosoma is armoured with chitinous plates, on the upper surface by the tergites and on the lower surface by the sternites
Metasoma: The tail of the scorpion, comprised of 5 segments, the last contains the anus of the scorpion and bears the telson (the sting) which comprises of the vesicle which holds a pair of venom glands, and the hypodermic aculeus, the barb used to inject the venom.
The scorpion body is divided into 2 main segments the cephalothroax and the abdomen, the cephalothroax consists of the prosoma and the abdomen of the mesosoma and the metasoma;
Prosoma: the “head” of the scorpion comprising the carapace, eyes, chelicera (mouth parts) and pedipalps (claw).
Mesosoma: The main body of the scorpion contains its lungs, digestive tract and sexual organs. The 4 pairs of walking legs (a common feature of the arachnids) are attached to this section as well as the pectines (featherlike sensory organs). The mesosoma is armoured with chitinous plates, on the upper surface by the tergites and on the lower surface by the sternites
Metasoma: The tail of the scorpion, comprised of 5 segments, the last contains the anus of the scorpion and bears the telson (the sting) which comprises of the vesicle which holds a pair of venom glands, and the hypodermic aculeus, the barb used to inject the venom.
Source: wikipedia, under GFDL
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