lateral-line system

(redirected from acoustico-lateralis system)
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lateral-line system

or

acoustico-lateralis system

a complex system of receptors found in fishes and amphibians, which occurs in a line along the length of the body and in a complex pattern on the head. The receptors occur in pores or canals and are capable of detecting very small changes in pressure in the surrounding medium, such as vibrations. When the animal is moving, impulses from efferent nerve fibres to the receptors prevent the latter from responding, so that they do not react to the animal's own movement. The inner ear of vertebrates is thought to have evolved from a receptor of the lateral-line system.
References in periodicals archive ?
Fish otoliths are the specialized hard parts of the actinopterygian and sarcopterygian acoustico-lateralis system, situated in the membranous labyrinths in the otic capsules of the neurocranium.
All sensory hair cells of all acoustico-lateralis systems studied exhibit an inward calcium current (ICa) that activates rapidly, preceding potassium current activation, and shows little inactivation (2-6).