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What is the normal flora of the respiratory tract?

What is the normal flora of the respiratory tract?

Normal respiratory flora include Neisseria catarrhalis, Candida albicans, diphtheroids, alpha-hemolytic streptococci, and some staphylococci.

Is there normal flora in the lungs?

Although it is widely believed that the lungs are a sterile environment [7], there are some microbes that can be considered to be part of the normal flora [8]. Some examples are Burkholderia cepacia complex, Chlamydophila pneumonia, Pseudomonoas aeruginosa [8], Aspergillus, Penicillium, and Candida [9].

What does normal respiratory flora mean?

That means that when a person has a bacterial respiratory infection, there will typically be harmless bacteria that are normally present in the mouth, throat, etc. ( normal flora) as well as disease-causing (pathogenic) bacteria present.

What is the normal flora of the throat?

Normal results would include finding organisms that grow in healthy throat tissues (normal flora). These organisms include non-hemolytic and alpha-hemolytic streptococci, some Neisseria species, staphylococci, diphtheria and hemophilus organisms, pneumococci, yeasts, and Gram-negative rods.

What are the two types of normal flora?

There are two types of flora, normal flora and transient flora.

What are the disadvantages of normal flora?

Sometimes normal flora can cause disease in the host body. If somehow the normal defense system or immune system of a host body is unable to restrict or tolerate the normal flora then they can cause diseases in the host body.

How do you clean your lungs of bacteria?


  1. Get lots of rest.
  2. Drink plenty of fluids (they’ll loosen up the gunk in your lungs so you can cough it out).
  3. Use a humidifier or take a warm bath (more gunk-loosening).
  4. Don’t smoke.
  5. Stay home until your fever goes down and you aren’t coughing anything out.

How can I make my lungs stronger?

To keep your lungs healthy, do the following:

  1. Stop smoking, and avoid secondhand smoke or environmental irritants.
  2. Eat foods rich in antioxidants.
  3. Get vaccinations like the flu vaccine and the pneumonia vaccine.
  4. Exercise more frequently, which can help your lungs function properly.
  5. Improve indoor air quality.

What is the purpose of having flora in the respiratory tract?

Like all human skin and mucosal surfaces, the respiratory tract is colonized with commensal bacteria that protect the host from disease, increase epithelial cell renewal rates, and promote production of mucosal immunoglobulins.

Where is normal flora not found in the body?

Resident Microbiota There are many areas of the human body that remain axenic, and, in the absence of disease, are never colonized by normal flora. Sterile areas include the body cavity, lungs, central nervous system, circulatory system and upper urogenital regions.

What is the type of normal flora?

Vast majority of normal flora are bacteria. Cutaneous surfaces Staphyloccocus including urethra and epidermidis outer ear Staphyloccocus aureus, Corynebacteria (diphteroids) Streptococci, Anaerobes e.g. Peptostreptococci, Yeast (Candida sp.) Staphylococcus epidermidis, invariably found on skin and nasal membranes.

What is function of normal flora?

The functions of the normal flora include digestion of substrates, production of vitamins, stimulation of cell maturation, stimulation of the immune system, aid in intestinal transit and colonization resistance.

What is heavy growth of normal flora?

It is expected that one have “normal flora”, or normal growth of typical bacteria. Heavy flora could mean a lot of normal bacteria (not harmful in a healthy person) or it could mean a heavy growth of abnormal, or harmful bacteria. Since the question does not mention a specific growth ( staphylococcus , klebsiella ,…

What is routine respiratory flora?

Normal flora of Respiratory tract Nose: Staphylococcus aureus S. epidermidis Streptococci diphtheroids Haemophilus spp Nasopharynx: Non-pathogenic strain of Streptococcus pneumoniae alfa haemolytic Streptococci Staphylococcus spp Neisseria species Corynebacterium species Haemophilus spp Micrococcus spp Nasal sinus: Nasal sinus is sterile and the nasal secretion contains lysozyme that kills viruses and gram positive bacteria. However, some transient flora are present Staphylococcus spp Corynebacterium spp

What is the normal flora?

Normal flora are the microorganisms that live on another living organism (human or animal) or inanimate object without causing disease. The human body is not sterile; we become colonised by bacteria from the moment we are born.

Is MRSA part of normal flora?

Methicillin -Resistant Staphylococcus aureus (MRSA) Summary. S. aureus is part of our normal flora, colonising the nose, axillae, groin, perineum and skin of 10-40% of the population.