Muscles of arm (table 9-1). The muscles of the anterior arm are the biceps, coracobrachialis, and brachialis. They are supplied by the musculocutaneous nerve. The triceps is the muscle of the posterior arm, and it is supplied by the radial nerve.he muscles of the anterior arm are the biceps, coracobrachialis, and brachialis. They are supplied by the musculocutaneous nerve. The triceps is the muscle of the posterior arm, and it is supplied by the radial nerve.
1 Based on analysis on US median household income, median household money income during the 2006-2012 period had an average (but not median) of $53,836, therefore by comparison the Gallup result is underreported and is even below the Census' own figures.
According to Social Security data, the median net wage for a working individual in the US is $28,031. That makes sense given the typical household income is around $52,000 and most households need two workers to make ends meet.This has created a two-income trap for many.7.8 percent of households make $70,492 in taxable income a year or less. A household making $167,728 a year or more is in the top 5 percent of US households. To make the top 1 percent you would need a household income of $388,905 or more.