Avascular Necrosis Is Defined As...

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" Without blood, tissue death " literally.

When looking at prefixes, suffixes and roots of words we can see the

the following...

A means without.

Vascular means blood.

Necrosis means tissue death.

So, avascular necrosis means without a blood supply the tissue will die.

For some unknown reason, long term use of prednisone will interrupt the

blood supply to certain tissues, like bone tissue and when this happens

the surrounding tissue dies because it is not receiving the nourishment

from the blood supply to sustain life.

I have this in my humeral heads on both sides. " BUT I AIN'T CLAIMING

NOTHIN YA HERE? "

X-ray revealed the smooth articulating surface of the humerus that is

responsible for smooth movement was being damaged. Why, because the

blood supply to that bone was diminished so much that it began to die.

Blood provide the nutrients to tissues in order for them to live.

Without a adequate flow of blood all tissues will eventually die. Just

like in the case of brain death. If oxygen and glucose are depleted in

the brain's circulatory system, then the brain dies and becomes

unresponsive, hint the term brain death.

I hope this explains it cleary for you.

Brother Ron