The most common organism in spinal infection is from the bacteria Staphylococcus aureus which typically exists on human skin, followed by Escherichia coli. Most spine infections occur in the lumbar spine because of the blood supply to this region of the spine.
Feudalism, a system of political and military relationships, evolved in western Europe. The feudal system was a simple but effective means of medieval government in which the king rented land to barons, who provided him knights and taxes
Define feudalism. feudalism synonyms, feudalism pronunciation, feudalism translation, English dictionary definition of feudalism. n. 1. A political and economic system of Europe from the 9th to about the 15th century, based on the holding of all land in fief or fee and the resulting...