Publication: A morphological study of the brain of Solea senegalensis. l. The telencephalon
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Date
2000
Authors
Rodriguez-Gomez, F.J. ; Sarasquete, C. ; Muñoz-Cueto, J.A.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
In this paper we present an anatomical
description of the telencephalon of Solea senegalensis
based on cresvl violet and haematoxilin-eosin-stained
serial transverse sections. This work was conducted as a
basis for the ~ r e c i s elo calization of neuroendocrine - -
territories in the brain of a species with growing interest
in marine aquaculture. The external asymmetric
morphology of Senegalese sole is correlated with the
asymmetry of the forebrain. The right olfactory nerve
and bulb are larger than the contralateral ones and this
asyrnmetry is also extended to the cerebral hemispheres.
The olfactory bulb comprises an outer olfactory nerve
fiber layer, a glomerular layer, an external cellular layer,
a secondary olfactory fiber layer and an interna1 cellular
layer. The telencephalic hemispheres can be divided in
area dorsalis and area ventralis, consisting of eleven and
eight cell masses, respectively. The area dorsalis
comprises five subareas: a pars medialis (Dm),
subdivided into four nuclei termed Dml to Dm4; a pars
dorsalis (Dd); a pars lateralis (DI), which consists of
dorsal (Dld), ventral (Dlv) and posterior (Dlp)
subdivisions: a pars centralis (Dc); and more caudally, a
pars posterioris (Dp), which is very prominent in this
species. A nucleus taenia (NT) was observed in the
tiansitional region between area dorsalis and area
ventralis. The area ventralis consists of pars dorsalis
(Vd), pars ventralis (Vv), pars supracommissuralis (Vs),
pars postcommissuralis (Vp), pars lateralis (VI), pars
centralis (Vc), pars intermedia (Vi) and nucleus
entopeduncularis (E). A periventricular organ, that we
have termed lateral septal organ (LSO), was observed in
the ventral telencephalon, media1 to VV.
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