explain these two concepts below found to confusing

(A)Greenstick fracture and ( B )Fatigue fracture

For each of the two concepts you identified as difficult or confusing, find a scholarly resource (video, journal article, website) that helped you better understand the topic. Cite both sources in APA format and explain the concept/content in your own words. Finally, note where in your assigned readings that content is covered. *Please note, you should not use “.com” websites for this assignment, as they are not scholarly sources.

Please use at least three citation and page number 350 plus words .