"These are little switches that open and close and allow a current to flow into or out of a cell," producing the electrical activity that drives the brain and muscles.
(These; are; little switches that open and close) (the electrical activity; drives; the brain and muscles) (These; allow; a current to flow into or out of a cell) Context(These allow,List([1, 56))):(a current; to flow; into or out of a cell)
These allow,List([1, 56))
These the electrical activity These a current
are drives allow to flow
little switches that open and close
the brain and muscles
a current to flow into or out of a cell
into or out of a cell