Vol 68, No 1 (2009)
Original article
Published online: 2008-11-25
Ultrastructural organisation and functional aspects of the olfactory epithelium of Wallago attu (Bleeker)
Folia Morphol 2009;68(1):40-44.
Abstract
The topological architecture and functions of different cells of the olfactory
epithelium in Wallago attu (Bleeker) have been systematically studied using
a scanning electron microscope. The elongated olfactory rosette of the fish
consists of 62 to 64 primary lamellae in each left and right rosette. Each lamella
is provided with apical sensory epithelium and basal non-sensory epithelium.
Topological analysis reveals that sensory epithelium contains receptor cells,
ciliated supporting cells, labyrinth cells, and goblet cells. The non-sensory epithelium
is made up of patches of ciliated supporting cells, epidermal or stratified
epithelial cells with concentrically arranged microridges, and scattered goblet
cells. Different cells on the olfactory epithelium support the view that the olfactory
signalling is important to the survival of this fish in an aquatic environment.
Keywords: topological organisationscanning electron microscope studyolfactory epitheliumWallago attu
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