General and Sub-ledgers As the main accounting record, the general ledger is created first. It is organized by account, with each numbered in a series, and each number is typically five to six digits long.
Paucity of vasculature. In adults, red bone marrow is primarily found in the flat bones, such as the pelvic girdle and the sternum. In children, it is found in the medullary cavity of the long bones, such as the femur.
Red marrow is the site of blood cell production. Yellow bone marrow stores triglyceride (fat) and is found in the medullar cavity in adults. In children all bone marrow is red until about the age of 5. In adults, marrow in the medullary cavity changes to yellow.