normal flora pdf

Organisms frequently found on or within body of healthy individuals In healthy human there are many of bacteria are consistently associated with the body. Ecoli causes urinary tract infection UTI if the site of habitat is changed.

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Normal flora of the gut provides important nutrients such as Vitamin K which aid in digestion and absorption of nutrients.

. These microorganisms under normal condition live as commensal on host body but they causes diseases if opportunity is available. The human body is home to around 1014 bacteria. Trauma surgery burns Bacterium at one site may be commensal but might be pathogenic at another site.

Role of normal flora. 1- Protective functions competing for nutrients and receptors or directly through the production of antimicrobial. Normal flora of GI tract ie.

An association between two species in which one benefits and the other is neither harmed nor benefited. The Normal Flora of Humans Definition. When the normal flora are displaced from their normal site of the body eg.

A human body contains around 1013 cells. Normal flora of the Oral cavity Nutrients Epithelial cells Secretions 19. Harmful Effect of Normal Flora 1.

Normal Microbial Flora The normal flora are bacteria which are found in on our bodies without causing disease. Opportunistic flora Some normal flora become opportunistic pathogens Staphylococcus aureus Streptococcus mutans Enterococcus faecalis Streptococcus pneumoniae Pseudomonas aeruginosa etc Breach of skinmucosal barrier. These microorganisms under normal condition live as commensal on host body but they causes diseases if opportunity is available.

National Center for Biotechnology Information. The term normal microbial flora denotes the population of microorganisms that inhabit the skin and mucous membranes of healthy normal persons. Fatty acids peroxides Bacteriocins.

- Many of the normal flora are opportunistic ie. Characteristics of Normal Flora Different body sites may have same or different flora depending on local conditions. Normal flora f What is Normal Flora.

Factors such as age diet hormonal state health and personal. Local conditions select for those organisms that are suited for growth in a particular area. Some normal flora become opportunistic pathogens Staphylococcus aureus Streptococcus mutans Enterococcus faecalis Streptococcus pneumoniae Pseudomonas aeruginosa etc Breach of skinmucosal barrier.

Bloodstream infections by S. - Has more bacteria than any other part of the body. There are more bacteria living in our bodies.

Trauma surgery burns Bacterium at one site may be commensal but might be pathogenic at another site. Throat or pharynx 21. Ecoli causes urinary tract infection UTI if the site of habitat is changed.

Microorganisms native or belonging naturally to a region Many bacteria commonly regarded as commensals are in. Content uploaded by Lynne Mcfarland. Normal flora of GI tract ie.

NORMAL FLORA OF HUMAN BODY By. Because of the normal flora occupy bodys epithelial surfaces they are able to prevent other bacteria from establishing themselves by blocking receptors attachment competing for essential nutrients or producing anti-bacteria substances. Table2 Characteristics ofwomenwithBVcandidiasis andnormalmicroscopy Normal Candida BV pvalue Variable n 8 n 8 n 10 BVvsnormal Averageagerange 394 35-6 405- Sexuallyactive 8 7 9 0-91.

A diverse microbial flora is associated with the skin and mucous membranes of every human being from shortly after birth until death. This bacterial population constitutes the normal microbial floraThe normal microbial flora is relatively stable with specific genera populating various body. 99 of normal flora in the large intestine are anaerobic Bacteroides spp.

They are estimated to outnumber human somatic and germ cells by a factor of 10. One fourth of fecal weight is made of bacteria. When potential pathogens gain a competitive advantage.

The human body which contains about 10 13 cells routinely harbors about 10 14 bacteria Fig. View Normal-florapdf from EMBRO 1242 at University of Perpetual Help System Laguna. An agent a microorganism that cause disease Indigenous flora.

Beneficial role of normal flora. Normal Bacterial Flora Bacterial Virulence Factors Mechanisms of Pathogenicity Host Defense Mechanisms Selected Bacterial Diseases Review lecture materials on BacteriaHost Intreactions Distruption of Normal Flora Trauma - appendix rupture dental extraction auto accidents gun violence. All content in this area was uploaded by Lynne Mcfarland on Aug 22 2014.

1 Body surfaces 2 Mucus membranes skin and mucous membranes are always contact with environmental organisms and become colonized by. Parts have more no. An association between two species in which each benefits the other Pathogen.

Beneficial role of normal flora. -Also many fungi protozoa and viruses can live there. Some pathogenic organisms may establish themselves in a host without manifesting symptoms the host is then referred to as a.

Role of normal flora.

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