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Encyclopedia > Crop (anatomy)

A crop is a thin-walled expanded portion of the alimentary tract used for the storage of food prior to digestion that is found in many animals, including gastropods, earthworms[1], leeches[2], insects, birds and clowns. For the Physics term GUT, please refer to Grand unification theory The gastrointestinal or digestive tract, also referred to as the GI tract or the alimentary canal or the gut, is the system of organs within multicellular animals which takes in food, digests it to extract energy and nutrients, and... For the industrial process, see anaerobic digestion. ... Subclass Subclass Eogastropoda     Patellogastropoda Subclass Orthogastropoda   Superorder Cocculiniformia   Superorder Hot Vent Taxa     Neomphaolida   Superorder Vetigastropoda   Superorder Neritaemorphi     Neritopsina   Superorder Caenogastropoda     Architaenioglossa     Sorbeoconcha   Superorder Heterobranchia     Heterostropha     Opisthobranchia     Pulmonata The gastropods, or univalves, are the largest and most successful class of mollusks, with 60,000-75,000 species, and second largest class... For the LPG album, see The Earthworm (album). ... For other uses, see Leech (disambiguation). ... Orders Subclass Apterygota Archaeognatha (bristletails) Thysanura (silverfish) Subclass Pterygota Infraclass Paleoptera (Probably paraphyletic) Ephemeroptera (mayflies) Odonata (dragonflies and damselflies) Infraclass Neoptera Superorder Exopterygota Grylloblattodea (ice-crawlers) Mantophasmatodea (gladiators) Plecoptera (stoneflies) Embioptera (webspinners) Zoraptera (angel insects) Dermaptera (earwigs) Orthoptera (grasshoppers, etc) Phasmatodea (stick insects) Blattodea (cockroaches) Isoptera (termites) Mantodea (mantids) Psocoptera... For other uses, see Bird (disambiguation). ... Clowning redirects here. ...

Contents

Bees

Cropping is used by bees to temporarily store nectar of flowers. When bees "suck" nectar, it is stored in their crop.[3]


Birds

In a bird's digestive system, the crop is an expanded, muscular pouch near the gullet or throat. It is a part of the digestive tract, essentially an enlarged part of the esophagus. As with most other organisms that have a crop, the crop is used to temporarily store food. Not all birds have a crop. In adult doves and pigeons, the crop can produce crop milk to feed newly hatched birds.[4] The esophagus, oe/œsophagus*, or gullet is the muscular tube in vertebrates through which ingested food passes from the mouth area to the stomach. ... The esophagus (also spelled oesophagus/Å“sophagus, Greek ), or gullet is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. ... This article does not cite its references or sources. ...


See also

The esophagus (also spelled oesophagus/Å“sophagus, Greek ), or gullet is an organ in vertebrates which consists of a muscular tube through which food passes from the pharynx to the stomach. ... Duck gizzards The gizzard , also referred to as the ventriculus, gastric mill, and gigerium, is an organ in the digestive tract found in birds, reptiles, earthworms, some fish, and other creatures. ...

References

  1. ^ Worm World: About Earthworms- http://yucky.discovery.com/flash/worm/pg000102.html
  2. ^ R. T. Sawyer, Leach Biology and Behaviour, Volume II - http://www.biopharm-leeches.com/pdf/bioandbehav.pdf
  3. ^ Honeybee Biology - http://koning.ecsu.ctstateu.edu/Plants_Human/bees/bees.html
  4. ^ The Alimentary Canal in Birds - http://www.earthlife.net/birds/digestion.html

External links

  • The Alimentary Canal in Birds

  Results from FactBites:
 
Avian Anatomy (7138 words)
Often, this may be mistaken for a tumor or abnormality in the neck, especially when the crop is empty and the bird is sitting comfortably.
This is called crop milk, and it resembles mammalian milk in that it is rich in fat and protein, however, it lacks carbohydrates and calcium, and contains no milk sugar (lactose).
The crop, in baby parrots, is very large, and shrinks down as the bird weans.
Crop (anatomy) - Wikipedia, the free encyclopedia (191 words)
The crop is a thin-walled expanded portion of the alimentary tract used for the storage of food prior to digestion that is found in many animals, including earthworms
Cropping is used by bees to temporarily store nectar of flowers.
In a bird's digestive system, the crop is an expanded, muscular pouch near the gullet or throat.
  More results at FactBites »

 
 

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