PATHOLOGY

Detailed explanation-1: -Regeneration refers to a type of healing in which new growth completely restores portions of damaged tissue to their normal state.

Detailed explanation-2: -In case of regeneration, the damaged or lost tissue is replaced by the proliferation of surrounding undamaged cells and tissue. The normal structure of the tissue is restored or complete regeneration occurs in epidermis, GI tract epithelium and hematopoietic system where the cells have high proliferative capacity.

Detailed explanation-3: -Epithelial and connective tissues replace damaged or dead cells from a supply of adult stem cells. Muscle and nervous tissues undergo either slow regeneration or do not repair at all.

Detailed explanation-4: -+ In regeneration, the new cells are the same type as those that were destroyed, and normal function is usually restored. + In replacement, a new type of tissue develops, which eventually produces a scar and causes the loss of some tissue function.