1. Jane, a 25-year-old female, was recently in a motor vehicle collision. Luckily she was wearing her seatbelt. Several months later, Jane had an X-ray that showed small calcifications in her breast....

1. Jane, a 25-year-old female, was recently in a motor vehicle collision. Luckily she was wearing her seatbelt. Several months later, Jane had an X-ray that showed small calcifications in her breast. Explain what has occurred (rest assured Jane does not have breast cancer).

2. Sam, a 5-year-old male, was badly burned when he pulled a pot of boiling water off of the stove. What determines how well his injuries will heal?