Circulatory System: Facts, Function & Diseases. The circulatory system is a vast network of organs and vessels that is responsible for the flow of blood, nutrients, hormones, oxygen and other gases to and from cells.
And I must make one more important point about all this maximum benefit business. I just said that the maximum Social Security benefit this year is $2,663. But there are many people getting more than that.
1 The maximum social security tax employees and employers will each pay in 2016 is $7,347.00 per employee (unchanged from 2015). 2  Domestic employees. 3  The threshold for coverage under social security and Medicare for domestic employees will be $1,900 in 2015 (unchanged from 2014). 4  Election workers.