Scar Tissue

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mith
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Scar Tissue

Post by mith » Fri Aug 12, 2005 6:16 am

what exactly is scar tissue? does it only form on large wounds?
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Dr.Stein
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Post by Dr.Stein » Fri Aug 12, 2005 7:27 am

Scar tissue appears during the healing of a wound. It is constructed from a loose connective tissue, especially collagen as a "filler" tissue. It is so-called because the original cells are damaged and cannot undergo regeneration. Those damaged things then being cleaned up by phagocytes, leaving an empty space, in which will be replaced by connective tissue.
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iri_black
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Post by iri_black » Fri Aug 12, 2005 9:36 am

Connective tissue that is no longer elastic like the skin, right? :?
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Post by MrMistery » Fri Aug 12, 2005 8:39 pm

it depends what kind of scar tissue you are reffering to, mithril. Scar tissue can form on the liver and in that case it is the transformation of Ito cells into miofibroblasts as a result of too much alcohol or a diet extremely rich in lipids. They contribue to the transformation by secreting colagen and other chemical that accelerate the process. Their number increses greatly in hipervitaminose A
Yes, very useless info... I like learning about the liver, don't ask why...
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mith
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Post by mith » Fri Aug 12, 2005 9:17 pm

Well, I've been told that scar tissue is whatever cell is floating around the wound at the time.
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Post by MrMistery » Fri Aug 12, 2005 9:30 pm

Hm... But what cell would fload around the skin except skin cells? I am thinking that the main "resource" for scar tissue is the dermus... with a lot of collagen
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Post by Dr.Stein » Sat Aug 13, 2005 5:44 am

Scar tissue, including the one in liver tissue that is called as cyrrhosis, is mainly constructed by collagen fibers. This kind of fiber, and another ones e.g. elastic fibers, reticular fibers, produced by fibroblasts, a stellat (flat, star-shaped with long processes) cell, which is the main cell type in common connective tissues. If you ask about "the resource", thus I can say fibroblast is the resource :wink:
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