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Infants grow relatively fast and need quite a lot of red blood cells, which are only produced in red bone marrow. As the infants grow older, much of the red bone marrow is gradually replaced by yellow bone marrow containing a special kind of fat that gives it its yellowish color. If the body needs more red blood cells than the remaining red marrow is capable of producing, some of the yellow marrow changes to red marrow.

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Q: Why is bone marrow primarily red in infants?
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Related questions

What kind of bone marrow do infants have?

red marrow


In newborn infants the medullary cavity and all areas of spongy bone contain yellow bone marrow?

No, when a child is born they only have red marrow. But as they start to grow older the red marrow turns into yellow marrow.


The primary site of erythropoiesis in the adult is the?

Erythropoiesis, the production of red blood cells, occurs primarily in the bone marrow of human adults.


In an adult red blood cells are produced primarily in the?

blood cells are produced primarily in the?


What are normal results of bone marrow aspiration and biopsy?

Healthy adult bone marrow contains yellow fat cells, connective tissue, and red marrow that produces blood. The bone marrow of a healthy infant is primarily red due to active production of red cells necessary for growth.


What type of bone marrow is mainly fat tissue?

The type of marrow that is made up primarily of fat cells is the yellow bone marrow. The red bone marrow is made up of myeloids.


What tissue produces erythrocytes?

bone marrow


What bone marrow is responsible for the manufacture of red and white blood cells?

Think about it you have red bone marrow and yellow bone marrow, which one produces red blood cells? That's right red bone marrow (:


What are the two kind of bone marrow?

There is yellow bone marrow and red bone marrow.


Where are most white blood cells made?

The Blood cells are produced in the Bone Marrow


Hemopoiesis is carried out in the?

red bone marrow located in the vertebral bodies, femur, humerus, ribs, and sternum


What part of the bone is hematopoietic tissue located?

In the few flat bone you have red bone marrow. It contains the precursor cells of the haemopoietic tissue. They produce the red blood cells.