"That has to be deeply involved with the way your nervous system functions," she said.

It also plays a role in how your immune system functions.

This is needed for healthy skin and nervous system function.

However, there are too many things that have to aligned to make the whole system function.

Increasingly, boot image control is a network operating system function.

Each system function may be 'fulfilled' in a variety of ways.

Skin disease may result from deficiencies in immune system function.

We are now waiting for an explanation as to how this electronic system functions.

I hold the Council responsible for a lack of political will to have the system function properly.

This case deals, rather, with the central issue of how our political system functions.