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Explain Pus Formation
Once a neutrophil finds a foreign particle or a bacterium, it will engulf it releasing enzymes, hydrogen peroxide and other chemicals from its granules to kill the bacteria. In a site of serious infection (where lots of bacteria have reproduced in the area), pus will form. Pus is simply dead neutrophils and other cellular debris. Many neutrophils and macrophages are killed by toxins released by highly virulent invaders. The dead phagocytes, microbes are trapped by still bigger phagocytes and they form a protective barrier. Dead phagocytes, enzymes, fluid, protein, damaged tissue cells etc. leak from capillaries and leave the body in the form of pus. This is a sure sign of infection. Like pus, fever too is a defence mechanism.
Define the Fixed Type of Macrophages The fixed types are located permanently in certain organs, which include: Lungs - alveolar macrophages. Liver - kupffer cells.
how many element found in nature.
The Early History of the Earth The Earth has been evolving and changing ever since its origin, about 4.5 billion years ago. In the first tens of millions of years of the Ea
Which latitudes and dates would coincide with the longest duration of insolation: 50oNorth on June 21
A physician notes that in a patient there is impaired vibration and position sense, astereognosis, and ataxia. The physician noted loss of all sensations in some areas of the patie
Explain parasympathetic Nerves System Another system that runs parallel to the sympathetic system is termed as the parasympathetic system. This system has an effect just opposi
Explain the Constituents and Examination of Urine The quantity of urine in 24 hours in adult normal individual varies from 600 ml to 2500 ml. It is pale yellow in colour, hyper
Deductive logic: Deductive logic may be considered as the opposite of induction. Here the reasoning is more direct. If we know a statement about a whole class of objects, ph
State about the Peaty soils Peaty soils occur in humid regions and have an accumulation of high organic matter. Such peaty soils containing considerable amount of soluble salt
A balance barometer This device depends on the fact that dry air is heavier than moist air at the similar temperature. Two equal cylinders (tin cans would do) are mounted, o
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