Extraintestinal Digestion

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Starfish ( Heliaster helianthus ) during the extraintestinal digestion of the crab claws

In the extra-intestinal digestion (from Latin. Specially outside, intestinum intestine), also known as outer digestive referred to is a digestive at most predatory living organisms, which takes place as a pre-digestion outside of the digestive tract, the digestive enzymes in either prey animal to be injected, so that this is liquefied from the inside, or the digestive juices are vomited through the prey. The food, which is pre-digested outside the body in this way, is then slurped up or sucked up by the animal and digested further in its intestinal tract .

The form of digestion described comes z. B. with some insects , the spiders and the starfish .

Individual evidence

  1. ^ Rainer F. Foelix : Biology of Spiders . 2nd Edition. Oxford Thieme, 1996, ISBN 0-19-509594-4 .