Noun:

குருதியின் வெள்ளை அணு,

leucocyte's Usage Examples:

It is largely to researches on the bone marrow that we owe our present knowledge of the origin and the classification of the different cellular elements of the blood, both erythrocytes or red corpuscles, and the series of granular leucocytes or white corpuscles.

Though this may dishearten the systematist, Scourfield (1900) reminds us that " It was in a water-flea that Metschni koff first saw the leucocytes (or phagocytes) trying to get rid of disease germs by swallowing them, and was so led to his epochmaking discovery of the part played by these minute amoeboid corpuscles in the animal body.

The mono-nuclear cells are ingesting and digesting many of the polymorpho-nuclear leucocytes.

As soon as the fluids and the polymorpho-nuclear leucocytes have :succeeded in diminishing the virulence of the micro-organism, the second line of defenders - the large mononuclear leucocytes (fig.

Absorption of this infarcted zone is carried on by means of leucocytes and other phagocytic cells, and by new blood-vessels.

The granuloma thus provides a complex, local microenvironment in which leucocytes interact to effect pathogen clearance or to ensure their containment.

Recent researches on arsenic and atropine, however, point to the leucocytes as playing an important part in the production of tolerance, as these gradually become capable of ingesting large amounts of the foreign substances, and thus render them more or less harmless to the tissues, until they are gradually excreted from the body.

It has been proved that the pyo-genic bacterial toxins, if not too concentrated, will attract the polymorpho-nuclear leucocytes, but if concentrated, may have a repelling influence.

, there is an active proliferation of the myelocytes to form the polymorpho-nuclear leucocytes, so that we have in this condition a leucoblastic transformation of the fatty marrow.

The behaviour of certain cells, especially leucocytes, with regard to anti-bacterial sera, the presence of phagocytosis cannot be regarded as the essence of immunity, but rather the evidence of its existence.

At the same time large numbers of these cells perish in the struggle, but even the death of these cells is of value to the body, as in the process of breaking down there are set free ferments which not only act detrimentally to the bacteria, but also may stimulate the bringing forward of another form of cell defenders - the mononuclear leucocyte.