Who is The paramedics from The Virgin Suicides and what is their importance?

The paramedics are a pair of recurrent characters throughout the novel. They drive the EMS truck that comes to either rescue or pickup the girls. The two men appear on five different occasions throughout the novel: to rescue Cecilia from her first suicide attempt, to retrieve Cecilia's body from the fence, to carry Lux to the hospital following her fake burst appendix episode, to pick up the bodies on June 15, and finally to pick up Mary's body after he suicide. One of them is tall and thin, the other is overweight with a face covered with razor bumps. Both are professionals who do nothing beyond what their job definition tells them.