Baltimore (CNN) -- Erika Brannock, a survivor of the Boston Marathon bombing, anxiously purses her lips.

Her eyes jump and she is quick to smile and laugh.

This is what someone looks like waiting to meet the person, a stranger, who she believes saved her life.

"I told my cousin last night that it's kind of like the night before Christmas, where you're so excited, but nervous at the same time and you can't sleep," Brannock told CNN's AC360 on Wednesday.

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Brannock is about to meet Amanda North, a woman who took her hand and did not let go.

The day of the marathon, the two women were standing near the finish line when the bombs went off.

North was there to watch her daughter run, while Brannock was supporting her mom.

Brannock was seriously injured. She suffered bone and tissue damage, eventually requiring the amputation of her lower left leg.

North was also injured. Like Brannock, her eardrums were busted.

She had cuts and lacerations on her leg. But in the immediate aftermath of the blast, North was unaware of her own injuries.

She just saw Brannock, who was clearly hurt more than she, and jumped in to help, offering her belt as a tourniquet for Brannock's leg.

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"She had heard me screaming for help and she said, 'My name is Joan from California, and I'm not going to let you go.' And she stayed with me the whole time," Brannock recalled.

Now, provide a numbered list of answers to these questions:

1. Was Brannock seriously injured?
2. What type of damage did she sustain?
3. What did this eventually require?
4. How about North, was she injured?
5. Where were her injuries?
6. Was she aware of them?
7. Who was hurt worst, Brannock or North?
8. Did anyone offer to help?
9. How?
10. Where is Joan from?
11. How long did she stay with Brannock?
12. Who did Brannock grant an interview for on Wednesday?
13. How did she feel about the interview?
14. Did she relate it to a holiday?
15. Which one?
16. The day after?
17. Who was reunited on the show?
18. Where were they standing when the bombs went off?
19. Who was North there to watch?
20. What about Brannock?

Numbered answers:
1. yes
2. bone and tissue damage
3. amputation of her lower left leg
4. yes
5. on her leg
6. no
7. Brannock
8. North
9. offered her belt as a tourniquet for Brannock's leg
10. California
11. the whole time
12. CNN's AC360
13. excited, but nervous
14. yes
15. Christmas
16. the night before
17. Brannock and North
18. near the finish line
19. her daughter
20. her mom