Editing Human skeleton (section)

===Blood cell production===
The skeleton is the site of [[haematopoiesis]], the development of [[blood cells]] that takes place in the [[bone marrow]]. In children, haematopoiesis occurs primarily in the marrow of the long bones such as the femur and tibia. In adults, it occurs mainly in the pelvis, cranium, vertebrae, and sternum.<ref>{{cite journal|last=Fernández|first=KS|author2=de Alarcón, PA|title=Development of the hematopoietic system and disorders of hematopoiesis that present during infancy and early childhood.|journal=Pediatric Clinics of North America|date=Dec 2013|volume=60|issue=6|pages=1273–89|pmid=24237971|doi=10.1016/j.pcl.2013.08.002}}</ref>