Bone marrow

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Bone Marrow

Mariana Gianezi

• Bone marrow is the flexible tissue found in the
interior of bones. In humans, red blood cells are
produced in the heads of long bones, in aprocess
known as hematopoesis.

Marrow Types
• Medulla ossium rubra (red marrow), which consists
mainly of hematopoietic tissue.

• Medulla ossium flava (yellow marrow), which is
mainly made up offat cells.

• 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

 In cases of severeblood loss, the body can convert yellow marrow
back to red marrow to increase blood cell production

Why do you need a transplant ?

• Bone Marrow
Transplantation (BMT) is
primarily indicated forthe
treatment of disorders that
impair the function of bone
marrow as hematological
diseases, onco-hematology,
diseases, genetic
damage, some solid
tumors and

hematological diseases



genetic damage

If you decide to donate…
1st. You must be between 18 and 55 years of age and be in good general health2nd. You can register as a volunteer donor bone marrow transfusion centers in your
3rd. It will be removed from your vein a small amount of blood (5ml) and filled in a
form with personalinformation.
 Your blood will be typified by examination of histocompatibility
 Its data are crossed with those of patients requiring bone marrow transplantation
 If compatibility isconfirmed, you will be asked to confirm you want to make a
donation. Your current health status will be assessed.
 The donation is a procedure that is done in the operating room under general orepidural anesthesia, and requires hospitalization for a minimum of 24 hours.
Important: A bone marrow donor must keep your records updated whenever
possible. If there is any change, please complete...
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