Definitions

Accretionary growth:

• Post embryonic growth in some special cells to reinforce and replace the worn out differentiated cells.

Ageing:

• Progressive deterioration in the structures and functions of cells tissues and organs.

Aldolase:

• An enzyme secreted by the liver.

Autotomy:

• A spontaneous self mutilation of body where lost parts are restored by regeneration process.

Auxetic growth:

• Volume of the body increases due to growth of body cells and not by increase in the number of cells.

Blastema:

• Cellular aggregation of newly formed cells to heal the injury.

Degrowth:

• Catabolism of the body is greater than anabolism and reserve food is utilized for performing normal metabolism.

Epimorphosis:

• Proliferation of new cells from the surface of wound to reform the severed body parts.

Gerontology:

• A branch of Biology dealing with the ageing process.

Lag Phase:

• Period of slow growth.

Morphallaxis:

• The reconstitution of the whole body even from a small fragment of body part.

Regeneration:

• A replacement, repair or restoration of lost or damaged body parts.

Reparative Regeneration:

• Repairing of some body parts due to proliferation of localized cells from the edges of wound.

Restorative Regeneration:

• Regeneration of severed body parts from left out fragment of the body.