# Involution

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Related to uterine involution: lochia, uterine subinvolution

## involution

[‚in·və′lü·shən]
(biology)
A turning or rolling in.
(embryology)
Gastrulation by ingrowth of blastomeres around the dorsal lip.
(mathematics)
Any transformation that is its own inverse.
In particular, a correspondence between the points on a line that is its own inverse, given algebraically by x ′ = (ax + b)/(cx-a), where a 2+ bc ≠ 0.
A correspondence between the lines passing through a given point on a plane such that corresponding lines pass through corresponding points of an involution of points on a line.
(medicine)
The retrogressive change to their normal condition that organs undergo after fulfilling their functional purposes, as the uterus after pregnancy.
The period of regression or the processes of decline or decay which occur in the human constitution after middle life.

## Involution

(raising to a power), an algebraic operation consisting in repeating a quantity a n number of times:

The number a is the base of the power, n is the exponent, and an is the power. For example, 3x3x3x3 = 34 = 81. The second power of a number is called its square and the third power, its cube.

## Involution

(regression), in biology, a reduction or loss, in the process of evolution, of certain organs, and a simplification of their organization and functions (for example, various degrees of intestinal reduction in certain parasitic worms and arthropods). Degenerative changes in protozoans and bacteria caused by unfavorable conditions in the habitat are also called involutional. In medicine, the term sometimes refers to atrophy of organs and tissues, such as in aging.

References in periodicals archive ?
Certainly, delayed uterine involution further predisposes the presentation of metritis.
Determining the immune status of periparturient animals in relation to the occurrence of endometritis, metritis and delayed uterine involution (PRD) during the postpartum period may assist to develop some efficient reproductive management strategies for dairy animals.
Uterine involution and ovarian follicular growth during early postpartum period of Murrah buffaloes (Bubalus bubalis).
In this investigation, ultrasonography was used to study the uterus and blood testing to determine the concentration of plasma progesterone to evaluate the effects of SHT on the process of uterine involution and ovarian activity in postpartum dairy cows.
Uterine Involution and Reinitiating of the Ovarian Cyclicity Postpartum in Female Buffaloes (Bubalus bubalis)
The buffaloes with abnormal uterine involutional changes, particularly those having foul smelling discharges or purulent discharge (puerperal metritis) and RFM cases, were treated as soon as detected and were declared free of disease as per the score card after completion of uterine involution.
Reproductive efficiency can be improved by optimum fertility by limiting reproductive problems of pre and post parturient disorders whose consequences may result in retained fetal membranes, delayed uterine involution, metritis and repeat breeding.
After parturition, suitable approach is proposed to administer oxytocin for three days followed by prostaglandins for three days for better expulsion of placenta and its shreds with speedy and early uterine involution.
Effect of biostimulation on uterine involution, early ovarian activity and first postpartum estrus cycle in beef cows.
Hence uterine ecbolic was used to bring quicker uterine involution to prevent further complication.
This case is responded promptly without complication because of early treatment by proper replacement of uterus and with administering antibiotics to prevent uterine infection, calcium boro gluconate was given to avoid hypocalcaemia condition and ecbolics were administered for hasten the uterine involution.

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