muscle, by budding regeneration

re·gen·er·a·tion (r

-j

-r

1. The act or process of regenerating or the state of being regenerated.

2. Spiritual or moral revival or rebirth.

3. Biology Regrowth of lost or destroyed parts or organs.

regeneration [rɪˌdʒɛnəˈreɪʃən]

1. the act or process of regenerating or the state of being regenerated; rebirth or renewal

2. (Life Sciences & Allied Applications / Biology) the regrowth by an animal or plant of an organ, tissue, or part that has been lost or destroyed

3. (Electronics) Electronics the use of positive feedback to increase the amplification of a radio frequency stage

regeneration (r

-j

-r

The regrowth of lost or destroyed parts or organs.

A Closer Look Regeneration of parts or, in some cases, nearly the entire body of an organism from a part, is more common than one might think. Many protists like the amoeba that have been cut in half can grow back into a complete organism so long as enough of the nuclear material is undamaged. Severed cell parts, such as flagella, can also be regrown in protists. New plants can be grown from cuttings, and plants can often be regenerated from a mass of fully differentiated cells (such as a section of a carrot root), which, if isolated in a suitable environment, turn into a mass of undifferentiated cells that develop into a fully differentiated organism. The capacity for regeneration varies widely in animals, with some able to regenerate whole limbs and others not, but the capacity is reduced significantly in more complex animals. Certain simple invertebrates like the hydra are always regenerating themselves. If cut into tiny pieces that are then mixed up, the pieces can reorganize themselves and grow back into a complete organism. Flatworms have the capacity to regenerate themselves from only a small mass of cells. If they are chopped up into fine pieces, each piece has the capacity to develop into an entire organism. Starfish, which are echinoderms, can regenerate their entire body from their central section and a single arm. Newts and salamanders can regenerate lost legs and parts of eyes, but many other amphibians such as frogs and toads cannot. Certain lizards can regenerate their tails. In many animals, these regenerated body parts are not as large as the originals but are usually sufficient to be functional. Many higher animals such as mammals regularly regenerate certain tissues such as hair and skin and portions of others such as bone, but most tissues cannot be regenerated. About 75 percent of the human liver can be removed, and it will regenerate into a functional organ. The physiological reasons for this are still not understood. Regeneration in this case takes the form of the enlargement of the remaining structures rather than the re-creation of the lost ones. Thus, there are four mechanisms for tissue regeneration in animals: the reorganization of existing cells (as in the hydra), the differentiation of stored stem cells into the specific tissues needed (as in the salamander), the dedifferentiation of neighboring tissue cells and their subsequent regrowth as cells of the needed type (as in plants as well as certain animals like the salamander), and the compensatory growth of the surviving cells of the specific tissue (as in the human liver). There is a great interest in stem cells because of their potential use in regenerating body tissues, such as nerve cells and heart muscle. The biochemical mechanisms for dedifferentiation are also the subject of intense study.

ThesaurusLegend: Synonyms Related Words Antonyms

Noun	1.	regeneration - (biology) growth anew of lost tissue or destroyed parts or organs biological science, biology - the science that studies living organisms morphallaxis - regeneration on a reduced scale of a body part; observed especially in invertebrates such as certain lobsters biological process, organic process - a process occurring in living organisms
	2.	regeneration - feedback in phase with (augmenting) the input positive feedback feedback - the process in which part of the output of a system is returned to its input in order to regulate its further output vicious circle, vicious cycle - one trouble leads to another that aggravates the first
	3.	regeneration - the activity of spiritual or physical renewal resurgence, revitalisation, revitalization, revival, revivification - bringing again into activity and prominence; "the revival of trade"; "a revival of a neglected play by Moliere"; "the Gothic revival in architecture"
	4.	regeneration - forming again (especially with improvements or removal of defects); renewing and reconstituting re-formation reconstruction - the activity of constructing something again

Translations

regeneration [rɪˌdʒenəˈreɪʃən] N → regeneración f

regeneration [rɪˌdʒɛnəˈreɪʃ^ən] n

[area] → régénération f; [economy] → régénération f
economic regeneration → régénération économique

[cells] → régénération f

regeneration

(= renewal, re-creation) → Erneuerung f; (fig: of person: by holiday etc) → Erholung f

(Elec) → Rückkoppelung f

regeneration [rɪˌdʒɛnəˈreɪʃ/ən] n (frm) (of economy, society) → rigenerazione f; (of feelings, enthusiasm) → rinnovamento

Mentioned in	?		Dictionary browser	?		Full browser	?
aplastic baptism blastema dedifferentiate feedback fertility symbol morphallaxis neogenesis New birth palingenesis positive feedback Re-formation rebirth reconstruction renewal resurgence revitalisation revitalization revival			Muscivora Muscivora-forficata muscle muscle builder muscle building muscle car muscle cell muscle contraction Muscle curve muscle fiber muscle fibre muscle in muscle into muscle mary muscle memory Muscle plasma Muscle reading muscle relaxant muscle sense Muscle serum muscle spasm muscle spindle Muscle sugar muscle system muscle tone muscle, by budding regeneration muscle-bound muscle-builder muscle-wasting musclebound musclebuilder musclebuilding Muscled muscleman Muscling muscly Muscogees Muscoid Muscoidea muscology Muscosity muscovado Muscovite Muscovy Muscovy duck Muscovy glass muscular muscular atrophy Muscular Christian Muscular Christianity muscular contraction			muscle system Muscle tension Muscle tension Muscle tension Muscle testing muscle testing procedures Muscle Thickness Muscle tissue Muscle tissue Muscle tissue Muscle to Bone Ratio muscle tone muscle tone muscle tone muscle tone muscle tones muscle tones muscle tones muscle tones muscle tonus muscle trimming muscle tumour Muscle twitch Muscle twitch Muscle twitching Muscle twitching Muscle Volume Muscle weakness Muscle Weight to Body Weight Muscle wire muscle, by budding regeneration muscle, by proliferation regeneration muscle, by proliferation regeneration muscle, by proliferation regeneration muscle, by proliferation regeneration muscle, changes in striation bands contraction muscle, changes in striation bands contraction muscle, changes in striation bands contraction muscle, changes in striation bands contraction muscle, changes in striation bands contraction muscle, chemical factors in contraction muscle, chemical factors in contraction muscle, chemical factors in contraction muscle, chemical factors in contraction muscle, chemical factors in contraction Muscle, skeletal Muscle, skeletal Muscle, skeletal Muscle, smooth Muscle, smooth Muscle, smooth muscle-bound muscle-bound muscle-builder muscle-contraction headache Muscle-Derived Stem Cell Muscle-Eye-Brain Disease muscle-paralyzing drugs muscle-paralyzing drugs muscle-paralyzing drugs Muscle-plate

regeneration (redirected from muscle, by budding regeneration)

regeneration
(redirected from muscle, by budding regeneration)