Fine structure of the canal neuromasts of the lateral line system in the adult zebrafish.

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Fine structure of the canal neuromasts of the lateral line system in the adult zebrafish.

Anat Histol Embryol. 2018 Mar 26;:

Authors: Laurà R, Abbate F, Germanà GP, Montalbano G, Germanà A, Levanti M

Abstract
The mechanosensory lateral line system of fish is responsible for several functions such as balance, hearing, and orientation in water flow and is formed by neuromast receptor organs distributed on head, trunk and tail. Superficial and canal neuromasts can be distinguished for localization and morphological differences. Several information is present regarding the superficial neuromasts of zebrafish and other teleosts especially during larval and juvenile stages, while not as numerous data are so far available about the ultrastructural characteristics of the canal neuromasts in adult zebrafish. Therefore, the aim of this study was to investigate by transmission electron microscopy the ultrastructural aspects of cells present in the canal neuromasts. Besides the typical cellular aspects of the neuromast, different cellular types of hair cells were observed that could be identified as developing hair cells during the physiological turnover. The knowledge of the observed cellular types of the canal neuromasts and their origin could give a contribution to studies carried out on adult zebrafish used as model in neurological and non-neurological damages, such as deafness and vestibular disorders.

PMID: 29582454 [PubMed - as supplied by publisher]

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