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The Response of the Ampullae of Lorenzini of Elasmobranchs to Mechanical Stimulation

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ABSTRACT The ampullae of Lorenzini are sensitive to weak tactile stimulation applied to the ends of their jelly-filled tubes. Either an increase or a decrease in their resting discharge frequency may be caused, each with an opposite after-effect. ‘Adaptation’ is total, being three-quarters completed in 3-8 sec. This ‘adaptation’ probably includes accommodative changes of the tissues. The function of the ampullae is discussed, but no definite conclusion can yet be reached.
Title: The Response of the Ampullae of Lorenzini of Elasmobranchs to Mechanical Stimulation
Description:
ABSTRACT The ampullae of Lorenzini are sensitive to weak tactile stimulation applied to the ends of their jelly-filled tubes.
Either an increase or a decrease in their resting discharge frequency may be caused, each with an opposite after-effect.
‘Adaptation’ is total, being three-quarters completed in 3-8 sec.
This ‘adaptation’ probably includes accommodative changes of the tissues.
The function of the ampullae is discussed, but no definite conclusion can yet be reached.

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