The middle section of the intestine, especially in an embryo or in an arthropod.
- The pyloric valvule will separate the mesenteron from the proctodaeum making the final section of the intestine.
- It regulates the flow of material from the mesenteron to the proctodeum.
- The mesenteron and Malpighian tubules are generally responsible for detoxification by accumulation of ingested metal salts in insects.
Late 19th century: from Greek mesos 'middle' + enteron 'intestine'.
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