Short bone
Encyclopedia
The patella, together with the other sesamoid bones, are by some regarded as short bones. Many short bones break more easily than large bones due to lack of support and extensive bone marrow
Bone marrow
Bone marrow is the flexible tissue found in the interior of bones. In humans, bone marrow in large bones produces new blood cells. On average, bone marrow constitutes 4% of the total body mass of humans; in adults weighing 65 kg , bone marrow accounts for approximately 2.6 kg...