Investigation of venous drainage patterns of rabbit peripheral nerves.

In this study, the venous drainage patterns of white New Zealand rabbits' peripheral nerves were examined in an effort to provide an animal model for studies focusing on the venous drainage of the healing nerves. Extremities of rabbits sacrificed via intraarterial lead oxide-gelatin solution, and thus had their peripheral bloods pushed out of the arteries and into the veins were dissected for the venous drainage of radial, median, ulnar, femoral, sciatic, tibial and fibular nerves. The observations revealed that white New Zealand rabbit was a feasible model due to its consistent venous anatomy draining the major nerves and accessibility and workability of them. Of those dissected, the most suitable set of nerves suitable for such studies seem to be the Median nerve of the anterior extremity, and Sciatic nerve of the posterior extremity (Fig. 12, Ref. 16). Text in PDF www.elis.sk. Text in PDF www.elis.sk.

Accumulation of heavy metals in water, sediments and wetland plants of kizilirmak delta (samsun, Turkey).

In this study, concentrations of heavy metals (Fe, Mn, Ni, Co, Zn, Cu, and Pb) were measured in water bodies including streams, bottom sediments and various wetland plants of Kizilirmak Delta. Kizilirmak Delta is one of the largest and the most important natural wetlands in Turkey and has been protected by Ramsar convention since 1993. The heavy metal concentrations in water were found lower than that of national standards for protected lakes and reserves. In bottom sediments and wetland plants, however, the accumulated amounts of different heavy metals varied in the following order: Fe>Mn>Zn>Ni>Co>Cu>Pb, and Fe>Mn>Zn>Ni>Co respectively. Heavy metal uptake of Hydrocharis morsus-ranae and Myriophyllum verticillatum plants among others were found far above the toxic levels and they might be used as bio-indicators and heavy metal accumulators in polluted natural areas.