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EspañolCROP (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, and birds.
Cropping is used by bees to temporarily store nectar of flowers. When bees "suck" nectar, it is stored in their crop.[3]
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]
★ Esophagus
★ Proventriculus
★ Gizzard
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
★ The Alimentary Canal in Birds
| Contents |
| Bees |
| Birds |
| See also |
| References |
| External link |
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]
See also
★ Esophagus
★ Proventriculus
★ Gizzard
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 link
★ The Alimentary Canal in Birds
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