The superior vena cava (or cranial vena cava in animals) is above the heart, and forms from a convergence of the left and right brachiocephalic veins, which contain blood from the head and the arms. Origin: 1590â1600; New Latin vena cava (sg), venae cavae (pl), 'hollow vein/veins'.
Benefits of Neem for Dogs. Neem leaves and neem oil benefit dogs in numerous ways. The leaves can be used to boost the immune system of dogs in general, and to repel intestinal parasites. Neem oil can also be used to treat skin problems, repel fleas, mosquitoes, and ticks. Read this page to see how neem can benefit the health and wellbeing of dogs.
More information on Neem oil. Neem seed oil can, when taken internally produce a toxic effect in humans, and side effects include diarrhoea, nausea, vomiting, acidosis, encephalopathy, etc. The toxic effects might be due to the presence of aflatoxin and other toxic compounds present in Neem oil.eem oil shows toxicity to fish like tilapia and carp, and oral administration of the oil in rats and rabbits (at 14 ml/kg and 24ml/kg respectively) produced a severe hypoglycaemic effect and possibly targets the central nervous system and lungs.