Resumen

CASTANEDA CORTES, Diana Carolina; TOVAR BOHORQUEZ, Oswaldo  y  HURTADO GIRALDO, Hernán. Morphological Study of Tete Sea Catfish (Ariopsis seemanni) Optic Nerve. Int. J. Morphol. [online]. 2013, vol.31, n.1, pp.184-188. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022013000100031.

The optic nerve carries out the information integrated by retinal ganglion cells towards the optic tectum, so that surrounding environment images are generated. The main goal of this paper is to describe morphometricaly the Tete sea catfish (Ariopsis seemanni) optic nerve, using high resolution optical microscopy (HROM), on 1 micron thick sections. A. seemanni optic nerve does present myelinated nerve fibers, accompanied by oligodendrocytes and astrocytes. The nerve is covered by the meninges, with blood vessels and adipocites. The nerve has a transversal area of 179,604 ± 30163 mm2, a diameter of 478 ± 42 mm and 22848 ± 4350 myelinated fibers, most are small in size, which may be related to a low conduction velocity.

Palabras clave : Tete sea catfish; Optic nerve; Nerve fibres; Morphometry.

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