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Publications (3)5.27 Total impact

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    ABSTRACT: The accessory nerve (nervus accessorius) displays a unique organization in that its axons ascend along the rostrocaudal axis after exiting the cervical spinal cord and medulla oblongata and thereafter project ventrally into the periphery at the first somite level. Little is known about how this organization is achieved. We have investigated the role of somites in the guidance of motor axons of the accessory nerve using heterotopic transplantations of somites in avian embryos. The formation of not only accessory nerve but also the vagal nerve was affected, when a more caudal occipital somite (somite 2-4) was grafted to the position of the first occipital somite. Our study reveals that only the first occipital somite permits the development of ventral projection of accessory axons, a process that is inhibited by more caudal occipital somites.
    Neuroscience 04/2013; · 3.12 Impact Factor
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    ABSTRACT: The aim of present study was to determine the origin, distribution and course of the coronary arteries in Bactrian camels. Ten hearts of adult healthy Bactrian camels of different sex constituted the material. Following exposition of the arteries by means of injection of 15% ABS coloured with red carmine to a. coronaria sinistra and a. coronaria dextra, dissection was performed. The arterial vascularization of the heart in Bactrian camels was determined to be supplied by a. coronaria sinistra and a. coronaria dextra which originate from the aorta. The results showed that ramus interventricularis subsinuosus is one branch of a. coronaria dextra in Bactrian camels, which is characteristic of a. coronaria dextra pattern. Ramus septi interventricularis that supplied the interventricular septum mainly originates from ramus interventricular paraconalis. Two muscular bridges ware observed crossing ramus interventricular paraconalis in the middle third of sulcus interventricularis paraconalis. Muscular bridge was not found above ramus interventricularis subsinuosus in this study.
    Veterinary Research Communications 12/2008; 33(4):367-77. · 1.08 Impact Factor
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    ABSTRACT: Detailed description of the brain size, rhinencephalon and hippocampal formation of the Bactrian camel is presented in our study. The brain weight of the Bactrian camel is 626 g averagely, and the encephalization quotient (EQ) value 1.3, indicating a high level of intelligence. The rhinencephalon is mature and well developed, accordant with the good olfactory sense. The hippocampus is relatively large, concomitant with the good ability of spatial memory. These anatomical features agree with the corresponding adaptive behaviors of the Bactrian camel and provide a morphological evidence of the camel to adapt to the acrid and semi- acrid environment.
    Veterinary Research Communications 08/2008; 33(1):25-32. · 1.08 Impact Factor