If you have a Comcast Internet connection, you can set up your computer to be available for remote access sessions using a native Windows utility. Once set up, this allows you to connect to remote computers using your Internet connection.
A stroma is the connective, part of a cell, organ or tissue. The  function of a stroma is to hold the cell, organ, or tissue together  and help it maintain form. Edit.
Function of the Sarcoplasmic Reticulum. stores calcium (Ca+) until stimulated by a nerve fiber. When calcium is released it travels down the T-tubules and removes the inhibitory effect of troponin and tropomyosin thus allowing actin and myosin to interact and cause contraction of the sacromere.