Checked out
Checked out is not domain specific language. When talking about medical visits, checked out is an informal term for having a medical evaluation. A check-up is a routine procedure done yearly that is normally called a physical in the medical field. A fall is a fall. There is no other domain specific vocabulary that can change this. Clinic and injuries are all typical domain specific terms that can be applied in medical situations.
Answer:
In lines 97-98 there is a simile "the notch is just like the pipe of a great pair of bellows" the notch is like the instruments to increase the draft of a fire
what is being underlined?
Answer:
If everyone died, no one survived...
The message was that Jesus led by example and showed that anyone, no matter how lost, who seeks Him will find Him.