PreparationShort axon, aspine, stellate neuron dorsal area telencephalon of a shark Squalus acanthias Linnaeus, 1758 (Chordata, Chondrichthyes, Selachii) |
In
|
|
|
Collection SPSU-ODK-PIS-2-1 |
Species: Squalus acanthias Linnaeus, 1758 Pisces Preparation Type: 60-100 µm thick celloidin sections Prepared: D.K. Obukhov Description: Frontal (transverse) celloidin section through an area of a telencephalic hemisphere of the spiny dogfish Squalus acanthias Linnaeus, 1758 impregnated with silver salts by the Golgi method. Method: Golgi method of silver impregnation of nervous elements Method Description: Frontal celloidin sections. Golgi impregnation. Institution: Saint Petersburg State University |
|
|
|
|
|
Series
|
|
|
|
Preparation SPSU-ODK-PIS-2-1 |
Description: Frontal (transverse) celloidin section through a telencephalic hemisphere of the brain of a cartilaginous fish (spiny dogfish) impregnated with silver salts by the Golgi method. Dorsal region of the pallium. The section shows a separately stained short-axon, spineless, stellate nerve cell with a system of dendritic (d) and axonal (ax) arborizations. Note a rich network of axonal collaterals (aхc) and the lack of spines on the dendrites. According to the classification of E. Ramon-Molinera, these neurons belong to a group of highly specialized, idiodendritic cells, which shows a high level of neuronal organization of the brain in some sharks. It is important to note that this kind of cells are found only in the pallium of higher vertebrates (birds and mammals). Organs: cerebral brain or its part, сentral nervous system Methods: Neurohistology - Golgi method of silver impregnation of nervous elements |
|