EXTRACELLULAR MATRIX. The extracellular matrix of connective tissue is composed of ground substance and fibers. In ordinary connective tissue, the ground substanc e consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element.The extracellular materials which comprise the matrix are produced by fibroblasts.n ordinary connective tissue, the ground substanc e consists mainly of water. The principal fiber type is collagen (the most abundant protein in the body), with elastic fibers as a minor element. The extracellular materials which comprise the matrix are produced by fibroblasts.
Major airlines require more flight hours and experience from pilots than that demanded by commuter and regional airlines. As of 2012, the salary range for regional airline pilots was $16,500 to $60,000, according to AvScholars, an organization that guides would-be aviators in education and career.
2016 Salary Information for Airline and Commercial Pilots. Airline and commercial pilots earned a median annual salary of $111,270 in 2016, according to the U.S. Bureau of Labor Statistics. On the low end, airline and commercial pilots earned a 25th percentile salary of $77,450, meaning 75 percent earned more than this amount. The 75th percentile salary is $166,140, meaning 25 percent earn more. In 2016, 124,800 people were employed in the U.S. as airline and commercial pilots.