Pneumostome
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High Quality Content by WIKIPEDIA articles! The pneumostome (or breathing pore) is a feature (the respiratory opening) of the external body anatomy of an air-breathing land slug or land snail. It is a part of respiratory system of gastropods. It is an opening in the right side of the mantle of a Pulmonata or subcladed Stylommatophora or snail. Air enters through the pneumostome into the animal's single lung, the air-filled mantle cavity. The pneumostome is often much easier to see in slugs than in snails, because of the absence of a shell. The pneumostome is usually very clearly visible on the right side of the animal when the pneumostome is wide open. However, the position of the pneumostome is often not at all easy to discern when the pneumostome is closed. The pneumostome opens and closes in a cyclical manner. The frequency of pneumostome closing and opening is typically less than 0.5 closures per minute in fully hydrated slugs and snails. The rate of closures per minute increases the more dehydrated the slug is.
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GarantieWeitere Informationen
- Allgemeine Informationen
- GTIN 09786131974076
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- EAN 9786131974076
- Titel Pneumostome
- Herausgeber Betascript Publishing
- Anzahl Seiten 92
- Genre Biologie
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