Illness differs from pathological reaction, pathological process and a pathological condition

Pathological reaction - inadequate and biologically inexpedient answer of an organism or its systems to influence usual or extreme stimulus. For example, short-term increase the arterial pressure after a nervous or downturn of presure a level of sugar in blood in connection with introduction of the big dozes of insulin.

Pathological reactions are either consequence, or display of the broken reactance of an organism. In one cases they can have qualitative character as the perverted, paradoxical answers to the certain influence or inadequate on intensity and duration of reactions. For example: allergic reactions both inadequate psychoemotional and behavioural reactions.

The pathological condition is a proof deviation of structure and function of body (fabric) from the norm, having biologically negative value for an organism; the infringements poorly varying in time. Pathological conditions can be genetically determined (defect of a upper lip and the firm sky, etc.) and can be consequence before the transferred disease or pathological process: consequences of traumas - cicatrixes, loss of finiteness, ankylosis, a lameness, false joints; a tuberculosis of a backbone - a hump; a rickets - deformation of a skeleton).

Examples of pathological conditions are also stump (after amputation of finiteness), cicatricial changes of fabrics after a thermal burn, an atrophy of alveolar shoots of a jaw in connection with removal or loss of the teeth, the got defect valval the device of heart.

Under influence of various additional influences the pathological condition can sometimes proceed in quickly developing pathological process.

Pathological process is sequence of reactions naturally arising in an organism on damaging action of the pathogenic factor. The same pathological process can be caused by various etiological factors and be a component of various diseases, keeping thus the essential distinctive features.

Examples of pathological processes are an inflammation pulmonary fabrics at a pneumonia, an inflammation of a cardiac musle at a heart attack of a myocardium, a fever at a belly typhus etc.

Set of pathological processes defines pathogeny diseases. But illness is not the simple sum of pathological processes.

Prominent features of pathological processes:1. Pathological processes can represent itself as an early stage of development of illness (adjournment of cholesterol as display broken lipide exchange, a thrombosis of coronary arteries as display of the broken microcirculation a heart attack of a myocardium).

Дата добавления: 2014-01-13