In adults, red bone marrow that produces red blood cells is mainly found in which type(s) of bone?

Question

Quizplus · Accepted Answer

Flat and irregular bones, such as the sternum, skull, and pelvic bones, contain red bone marrow that produces red blood cells in adults. Long and short bones contain red bone marrow in children, but this is eventually replaced by yellow bone marrow (which produces fat cells) in most long bones of adults. Sesamoid bones may or may not contain red bone marrow, depending on their location and function. Irregular bones may contain some red bone marrow, but they are not the main site of red blood cell production in adults.

In Adults, Red Bone Marrow That Produces Red Blood Cells