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The siphon is part of the mantle of the mollusc, and the water flow is directed to (or from) the mantle cavity. A single siphon occurs in some gastropods. In those bivalves which have siphons, the siphons are paired. In cephalopods, there is a single siphon or funnel which is known as a hyponome.
The term "siphon" is used for a number of structures in human and animal anatomy, either because flowing liquids are involved or because the structure is shaped like a siphon, but in which no actual siphon effect is occurring: see Siphon (disambiguation).
In certain groups of carnivorous snails, where the siphon is particularly long, the structure of the shell has been modified in order to house and protect the soft structure of the siphon. Thus the siphonal canal is a semi-tubular extension of the aperture of the shell through which the siphon is extended when the animal is active.
[2] in other words, when some factor is sufficient to cause an effect, the presence of the cause guarantees the occurrence of the effect. [3] However, a different cause z may also cause y, meaning that y may occur without x occurring. [2] [3] For a concrete example, consider the conditional statement "if an object is a square, then it has four ...
The siphon is additionally innervated by about 30 peripheral motor neurons. [2] Kandel and colleagues used preparations of Aplysia californica where individuals were restrained in small aquariums in a manner that the gill was exposed. A tactile stimulus was administered to the siphon and elicited the gill and siphon withdrawal reflex.
A siphon is a tubular organ of the respiratory system of some insects that spend a significant amount of their time underwater, that serves as a breathing tube. The larvae of several kinds of insects, including mosquitoes, tabanid flies, and Belostomatidae, live in the water and breathe through a siphon. Water scorpion Ranatra elongata
A siphon is a tube in an inverted U shape which enables a liquid, under the pull of gravity, to flow upwards and then downwards to discharge at a lower level. Siphon may also refer to: Soda siphon, device used for dispensing carbonated water; Siphon (insect anatomy) Siphon (mollusc), an organ of many aquatic molluscs through which water (or air ...
A Soxhlet extractor has three main sections: a percolator (boiler and reflux) which circulates the solvent, a thimble (usually made of thick filter paper) which retains the solid to be extracted, and a siphon mechanism, which periodically empties the condensed solvent from the thimble back into the percolator.