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.
What it is: Arbitrage is the process of exploiting differences in the price of an asset by simultaneously buying and selling it. In the process the arbitrageur pockets a risk-free return.Differences in prices usually occur because of imperfect dissemination of information.hat it is: Arbitrage is the process of exploiting differences in the price of an asset by simultaneously buying and selling it. In the process the arbitrageur pockets a risk-free return.