Pneumonia, Biology

Assignment Help:

Pneumonia:

Pneumonia is an inflammation with consolidation  of  the parenchyma of  the lung. It occurs most commonly in infants and young children and may occur as primary disease or as complication  of another illness or may be due to aspiration of  foreign substance. Pneumonia may be classified on anatomic and etiological basis. 

Anatomic:  lobar pneumonia,  lobular pneumonia, interstitial pneumonia, Broncho pneumonia. 

Etiologic: It may be caused by virus; influenze, parainfluenza, adenovirus, mixovirus etc. Bacteria; pneumococci staphylococci, Streptococci, klebseilla, E.coli, pseudomonas etc. Fungi; protozoa, metazoa, chemicals, etc. 

Pathology 

Bacteria reach the lungs through respiratory passages and multiply in the alveoli. The first stage of  attack is called engorgement, during this period the lungs become dark, bluish red and heavy. During the next stage i.e. red hepatization the affected lobes become solid with red cells and fibrin and the air is displaced. In the last stage of grey hepatization  the pleural surface lacks lustre and is dull in colour. The alveoli are  filled with leukocytes  and fibrin. The invading organism produces  inflammation in the mucosa with exudation  in the alveoli  so that it becomes relatively solid.  


Related Discussions:- Pneumonia

Brasseler endo extractor tube-endodontics principles, Brasseler Endo Extrac...

Brasseler Endo Extractor tube Insert H file buccally and lingually and remove silver by friction.If I can't remove use solvent to desolve cement If the tip of silver not appear

Codominance, CODOMINANCE The alleles which do not show dominance-recess...

CODOMINANCE The alleles which do not show dominance-recessive relationship and are able to express themselves independently when present together are called codominant alleles.

Explain purpose of therapeutic dietary adaptations, Purpose  of  Therapeuti...

Purpose  of  Therapeutic Dietary Adaptations A therapeutic diet is a quantitative/ qualitative modified version of a basic nutritious diet which has been tailored to suit the c

Explain procedure for checking the presence of rhodamine b, Explain Procedu...

Explain Procedure for Checking the Presence of Rhodamine B? Conduct the experiment following the procedure given herewith: 1. Pour liquid paraffin or mineral oil in a Petri

Classification, claasification of phylum porifera

claasification of phylum porifera

What are main successful vaccines, Main successful vaccines are live attenu...

Main successful vaccines are live attenuated and heat killed vaccines.

Define equilibrium between two solid phases and a gas phase, Define Equilib...

Define Equilibrium between two solid phases and a gas phase? Consider the following reaction equilibrium: 3 CuO(s) + 2NH 3 (g) ↔ 3 Cu(s) + 3H 2 O (g) + N 2 (g) Accordin

Describe the initiation of visual impulse, Describe the Initiation of Visua...

Describe the Initiation of Visual Impulse When light falls on the retina it is absorbed by the photosensitive pigments of rods (rhodopsin) and cones (photopsin). It initiates

Define the diet for children, Define the Diet for Children? By preschoo...

Define the Diet for Children? By preschool stage, their routines are set' and dietary choices become more and more firm by the time they are in senior school. Further, there is

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd