Bone marrow Facts

Bone marrow is the flexible tissue in the interior of bones.

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In humans, red blood cells are produced by cores of bone marrow in the heads of long bones in a process known as hematopoiesis.

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On average, bone marrow constitutes 4% of the total body mass of humans;

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Bone marrow in an adult having 65 kilograms of mass (143 lbs).

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Bone marrow typically accounts for approximately 2.6 kilograms (5.7 lb).

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The hematopoietic component of bone marrow produces approximately 500 billion blood cells per day.

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Bone marrow is also a key component of the lymphatic system, producing the lymphocytes that support the body's immune system.

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Bone marrow transplants can be conducted to treat severe diseases of the bone marrow, including certain forms of cancer such as leukemia.

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Bone marrow stem cells have been successfully transformed into functional neural cells,

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Bone marrow can potentially be used to treat illnesses such as inflammatory bowel disease.

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The two types of bone marrow are "red marrow" (Latin: medulla ossium rubra), and "yellow marrow" (Latin: medulla ossium flava).

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Both types of bone marrow contain numerous blood vessels and capillaries.

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At birth, all bone marrow is red. With age, more and more of it is converted to the yellow type; only around half of adult bone marrow is red.

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Red bone marrow is found mainly in the flat bones, such as the pelvis, sternum, cranium, ribs, vertebrae and scapulae, and in the cancellous ("spongy").

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Yellow bone marrow is found in the medullary cavity, the hollow interior of the middle portion of short bones.

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Animal bone marrow has been used in cuisine worldwide for millennia, such as the famed Milanese Ossobuco.

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