Within the gates When a pathogen breaches a gate and enters the body, other components of the immune system-white blood cells-go to work.
(a pathogen; breaches; a gate) (a pathogen; enters; the body) (other components of the immune system-white blood cells; go; to work; T:Within the gates; T:When a pathogen breaches a gate and enters the body)
a pathogen a pathogen other components of the immune system-white blood cells
breaches enters go
a gate
the body
to work T:Within the gates T:When a pathogen breaches a gate and enters the body