MUSCLES OF RESPIRATION. When the diaphragm contracts in inspiration, initially the lower ribs are fixed and the dome of the diaphragm descends, thus increasing the vertical diameter of thorax.
arrearage. 1  the state or condition of being in arrears. 2  Often, arrearages. arrears; amount or amounts overdue. 3  Archaic. a thing or part kept in reserve.
Tweet. Arbitrage is the market activity of buying and selling of same security on exchanges or between spot prices of a security and its future contract.ence arbitrage as a practice is followed to take advantage of the price disparity. Originally arbitrage occurred in the currency market, but now it applies equally in the commodity, futures and the stock market as well.