Leucocytes. About 65 per cent of al

Leucocytes. About 65 per cent of all white cells are leucocytes. Their protoplasm contains granules. Those leucocytes that stain neutral dyes - as the majority do - are called neutrophils. About 1.5 per cent of the total stain with acid dyes and are called eosinophils. And a still smaller number, 0.5 per cent, have granules that stain with basic dyes; these are called basophils. The percentage of oesinophils increases greatly when parasites invade the body.

2. One characteristic of leucocytes is the irregular, or lobed, appearance of the nucleus. The number of lobes is an index to the cell's age. Ordinarily, about 45 per cent of all leucocytes have a nucleus of three lobes. The life span1 of a leucocyte is short, from four to twelve days.

3. The function of leucocytes is primarily that of protection against infection. After the skin is pierced and the wound becomes infected, leucocytes from all the body are attracted to this place. Just what attracts them is not known - the process is called chemotaxis - probably some by-product of bacterial metabolism. When they arrive at the wound, they leave the blood stream. They wage war on the invaders, engulfing the bacteria within their own protoplasm, a process called phagocytosis (literally «cell-eating»). Before the infection is not too overwhelming, the victory usually goes to the leucocytes.

Результаты (английский) 1:

Leucocytes. About 65 per cent of all white cells are leucocytes. Their protoplasm contains granules. Those leucocytes that stain neutral dyes-as the majority do-are so-called neutrophils. About 1.5 per cent of the total stain with dyes and acid are called eosinophils. And a still smaller number, 0.5 per cent have granules that stain with basic dyes; These are the so-called basophils. The percentage of oesinophils increases greatly when the parasites invade the body.2. One characteristic of leucocytes is the irregular, lobed, or appearance of the nucleus. The number of lobes is an index to the cell's age. Ordinarily, about 45 per cent of all leucocytes have a nucleus of three lobes. The life of a leucocyte span1 is short, from four to twelve days.3. The function of leucocytes is primarily that of protection against infection. After the skin is pierced and the wound becomes infected, the body from all leucocytes are attracted to this place. Just what attracts them is not known-the process is called chemotaxis-probably some by-product of bacterial metabolism. When they arrive at the wound, they leave the blood stream. They wage war on the invaders, engulfing the bacteria within their own protoplasm, a process called phagocytosis (literally "cell-eating"). Before the infection is not too overwhelming, the victory usually goes to the leucocytes.

Результаты (английский) 3:

Leucocytes. about 65 per cent of all white cells are leucocytes. the protoplasm contains granules. those leucocytes that stain neutral dyes as the majority do - are called neutrophils. about 1.5 per cent of the total stain with acid dyes and are called eosinophils. and a still smaller number, 0.5 per cent, have granules that stain with basic dyes; these are called basophils. the percentage of oesinophils increases greatly when parasites new record body.2. one characteristic of leucocytes is the irregular, or lobed, appearance of the nucleus. the number of lobes is an index to the cell's age. Ordinarily, about 45 per cent of all leucocytes have a nucleus of three lobes. the life of a span1 leucocyte is short, from four to twelve days.3. the function of leucocytes is descended from that of protection against infection. after the skin is pierced and the or becomes infected, leucocytes from all the body are attracted to this place. just what features it is not known, the process is called chemotaxis - was a by - product of bacterial metabolism. when they arrive at the or, they leave the blood stream. they wage war on the invaders, engulfing the bacteria within their own protoplasm, a process called phagocytosis (literally "cell - eating»). before the infection is not too overwhelming, the king usually goes to the leucocytes.