It is called a scar or a scab.
The scientific name for scab is "crust." It is a protective covering that forms over a wound or lesion during the healing process.
The normal signs for a wound that is healing is usually the clotting of the blood in the air. If you notice the blood starting to recede and it looks hard then you know it's healing. Depending on the wound of course (i'm thinking a minor cut that has a decent amount of blood and isn't more than 1-2 cm deep). usually within a day it will be scabbed over a bit and be sure not to disturb it during this process otherwise it will re-open.
A medical healing device
A cicatrix is a scar left by the formation of new connective tissue over a healing sore or wound.
Hypertophic scars.are caused by an over-active healing process. This produces an excessive amount of collagen at the wound site.Hypertophic scars do not extend beyond the wound site. are red, thick, and raised above the wound.
Caterpillars have a hard outer covering called an exoskeleton. They have sensory hairs or bristles all over their body and holes in their sides for breathing.
The dressing should be changed every day if possible. After the first few days, when the wound has stopped bleeding and begun healing over, a dressing is probably not necessary.
This depends on the species. Some fish have a harder coating over themselves than others.
Because someone cut part of his body off for no good reason and it isn't healing properly. The wound might be itchy and he might be licking or whatever which prevents it from scabbing over.
Well it's very hard to say. They just have this over whelming power to do so...
Where taking vitamin C in any form will heal wounds faster is controversial. Would healing takes place over days and weeks so there is not likely to be any advantage to injecting it.
The chance of a wound becoming infected depends on the nature, size, and depth of the wound; its proximity to and involvement of nonsterile areas, such as the skin and gastrointestinal (GI) tract.