Predisposing factors and pathphysiology of meningitis, Biology

Predisposing Factors

The patients with diabets mellitus, malignancies and those on immunosuppressive drugs have reduced resistance and are more susceptible to develop meningitis due to infection with Eisteria monocytogenes and mycoplasma pneumoniae, etc, The infection is more common in infants and young children because their immune mechanism and phagocytic functions are not fully matured. Meningitis may follow upper respiratory infection, otitis media, Pyoderma and head injuries.

Pathophysiology

The infection may spread to meninges from other sources such as nasopharynx, the organism invade surrounding blood vessels and enter the cerebrospinal fluid spreading throughtout the subarachnoid space. As a result of inflammatory process, there is an increase in cerebrospinal fluid (CSF) exudate in the ventricles and interference in the CSF flow throughout the ventricular aqueduct. The fluid in subarachnoid spaces may be cloudy or opaque or purulent depending upon the type of organism identified. Ependymal cells are also destroyed and purulent exudate collects at the base of the brain. Thrombophelbitis of cerebral vessels may occur leading to infection and cerebral damage and cranial nerves may also be affected, resulting in deafness, blindness, and weakness or paralysis of the muscles of the face and neck.

Posted Date: 10/27/2012 2:47:04 AM | Location : United States







Related Discussions:- Predisposing factors and pathphysiology of meningitis, Assignment Help, Ask Question on Predisposing factors and pathphysiology of meningitis, Get Answer, Expert's Help, Predisposing factors and pathphysiology of meningitis Discussions

Write discussion on Predisposing factors and pathphysiology of meningitis
Your posts are moderated
Related Questions
What is Mendelian Genetics? Mendelian Genetics :  In 1868, an Austrian monk, Gregor Mendel, first published the basics of a study we now call Mendelian genetics. Mendel obser

PHYSIOLOGY AND BIOCHEMISTRY - Ample and concrete evidence of organic evolution are obtained from the functional activity and chemical composition of animals. J.B.S. Hald

Advantages of Metagenesis in Cnidaria In this you have studied that a huge number of Cnidarian colonies are polymorphic and exhibit alternation of generations. This changes o

There are several kinds of pollution, main among them are as follows:

Define Obligatory Nitrogen losses? The Committee estimated the total obligatory nitrogen losses through faeces, urine, skin and other miscellaneous routes in adult men as 2.0 m

Which are the more abundant ribosomes in secretory cells - the free cytoplasmic ribosomes or those associated with the rough endoplasmic reticulum? Free cytoplasmic ribosomes

Precipitation Precipitation literally means falling from a height. In case of water, precipitation includes all forms in which atmospheric moisture descends to earth; rain, sno

Determine Minerals Requirements at high altitude? Increased urinary excretion of Nat and K + on exposure to hypoxia is reported while some workers have found only increase in

Available and Non-available Water You have seen above that water is present even in the apparently dry soils but it is of not much use as far as the plants are concerned. They

Would it be possible to establish a pure-breeding population of brown pigs with a few black spots?