What normal flora is found in the throat?

What normal flora is found in the throat?

The normal basic throat flora includes Gram-negative cocci, non-hemolytic streptococci, and for certain individuals “large Gram-positive cocci,” B. influenzae, Bacillus “X,” and diphtheroids. Transient organisms are Staphylococcus albus, hemolytic streptococci,Staphylococcus aureus and citreus, and pneumococci.

What are the normal flora of the human body?

The human body, which contains about 1013 cells, routinely harbors about 1014 bacteria (Fig. 6-1). This bacterial population constitutes the normal microbial flora . The normal microbial flora is relatively stable, with specific genera populating various body regions during particular periods in an individual’s life.

Where are normal flora found in the body?

Normal flora is found in all areas of the human body exposed to the environment (one exception is the lungs), but internal organs and body fluids are considered sterile in a healthy individual. This is generally true, although bacteria are sometimes found in these “sterile” tissues even in healthy people.

What are some organisms that considered normal flora of nose & throat?

Anatomical Location Predominant bacteria
mucous membranes streptococci and lactic acid bacteria
Upper respiratory tract
nares (nasal membranes) staphylococci and corynebacteria
pharynx (throat) streptococci, neisseria, Gram-negative rods and cocci

Is Staph aureus normal throat flora?

aureus is also part of the normal upper respiratory flora. Although the presence of organisms other than group A streptococci, including S.

Which of the following are the most common members of the normal flora of the mouth?

which of the following are the most common members of normal flora of the mouth? Streptococcus mutans. Streptococcus sanguis.

What is normal flora role in immunity?

Intestinal bacteria play an important role in the development of the immune system. The normal intestinal flora is responsible for resistance to colonization by exogenous pathogenic microorganisms. Nevertheless, it also constitutes a reservoir of potentially pathogenic bacteria in close contact with the host.

What types of bacteria are commonly found in the mouth?

Anaerobic bacteria in the oral cavity include: Actinomyces, Arachnia (Propionibacterium propionicus), Bacteroides, Bifidobacterium, Eubacterium, Fusobacterium, Lactobacillus, Leptotrichia, Peptococcus, Peptostreptococcus, Propionibacterium, Selenomonas, Treponema, and Veillonella.

What is the normal flora found in the nose?

The most common aerobic bacteria were Staphylococcus epidermidis (79%), diphtheroids (41%) and Staphylococcus aureus (34%).

How do you differentiate between Staphylococcus and streptococcus?

Streptococci are Gram-positive cocci that grow in pairs or chains. They are readily distinguished from staphylococci by their Gram-stain appearance and by a negative catalase test. More than 30 species have been identified. The classification of streptococci is complex and is based on a combination of features.