Contains the spinal cord from the brain stem to the upper lumbar spine. There is no spinal cord in the lower lumbar spine. At the L1 level, the spinal cord terminates as the conus medullaris. A bundle of nerves called the cauda equina (meaning horse's tail) branch off the conus medullaris.These nerve roots are suspended in the fluid-filled dural sac.2 Thoracic vertebra (T1-T12). 5 Lumbar vertebra (L1-L5). The sacrum and coccyx are made up of 9 fused vertebrae. Each vertebra is attached to the one above and below it by ligaments and muscles and is separated from the vertebra above and below it by an intervertebral disc.
In the September 2014 Census Bureau report on income and poverty in the U.S., the median household income in America across all jobs was $51,939. That reflects 2013 information; 2014 data will be out in September of this year. That figure was not statistically different from 2012, reflecting continually stagnant wages.
According to data from the 2000 U.S. Census, the average salary of U.S. workers between the ages of 21 and 64 with a bachelor's degree was $42,877, while those with a master's degree or higher earned an average salary of $55,242. Salaries for college graduates vary by subject, as well as the level of degree earned.