A morphometric comparative study of the lateral geniculate body in selected placental mammals: the common shrew, the bank vole, the rabbit, and the fox

• Autorzy: Najdzion J. , Wasilewska B. , Bogus-Nowakowska K. , Rowniak M. , Szteyn S. , Robak A.
• Języki publikacji: EN

Abstrakty

EN

The lateral geniculate body (LGN) was morphometrically examined and compared in representatives of four mammalian orders (Insectivora, Rodentia, Lagomorpha, and Carnivora). In each studied species, the lateral geniculate body was divided into two distinct parts: the dorsal nucleus (LGNd) and the ventral nucleus (LGNv). The lateral geniculate body of the common shrew and the bank vole are very similar in appearance and nuclear pattern. The dorsal and ventral nuclei of these two species also have the most similar statistical characteristics. The lateral geniculate body of the fox has the most complicated morphology and multilayered structure. A significant disproportion was observed between the sizes of both geniculate nuclei in the fox, where the dorsal nucleus definitely surpassed the ventral nucleus in terms of volume. With the exception of the fox, the neuronal density of the LGN nuclei was negatively correlated with the volumes of the LGN. The mean neuronal size of the LGNd and LGNv, which was the resultant of the length, width, area, and circumference of the soma, grew correlatively to the volumes of these nuclei. In all examined species, somas of the LGNd neurons are distinctly larger and have more similar shapes than the LGNv perikarya. In addition, the numerical density of neurons in the ventral nucleus is significantly higher than in the dorsal nucleus. All these morphometric parameters clearly differentiate the LGNd from the LGNv (Folia Morphol 2009; 68, 2: 70–78).

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2009
• Tom: 68
• Numer: 2
• Opis fizyczny: p.70-78,fig.,ref.

Twórcy

autor

Najdzion J.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

autor

Wasilewska B.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

autor

Bogus-Nowakowska K.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

autor

Rowniak M.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

autor

Szteyn S.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

autor

Robak A.

• Department of Comparative Anatomy, University of Warmia and Mazury in Olsztyn, Plac Lodzki 3, 10–727 Olsztyn, Poland

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