Lec 1 - Normal Human Microbiota Flashcards
The population of microbial symbionts that inhabit the skin and mucous membranes of healthy and normal humans
Normal Human Microbiota
Flora changes depending on the age of the patient, environment and number of host
False (Type of Host)
Collective term for the genome of microbial symbionts
Microbiome
All are true regarding the function of normal human microbiota except.
A. Secondary defense against microbial pathogens
B. Assists in digestion
C. Plays a role in toxin degradation
D. Contributes to the maturation of the immune system
A (Primary defense)
Fixed types of microorganisms that are found in a certain area at a certain age
Resident Microbiota
True or False.
Physiological factors that affect the resident flora are temperature, moisture, nutrients and inhibitory substances.
True
Microorganisms that are derived from the environment and temporarily inhabits the body.
Transient Microbiota
Launched by the national institutes of health in 2007, whose goal is to understand the range of human genetic and physiologic diversity.
Human microbiome project
These type of bacteria has the highest topographical distribution on the auxiliary vault, antecubital fossa, interdigital web space and hypothenar palm.
Proteobacteria
These type of bacteria has the highest topographical distribution on the inguinal crease and the umbilicus
Corynebrcteriaceae
Propionbacteriaceae has the highest topographical distribution in which skin site.
A. Back
B. External auditory canal.
C. Manubrium
D. Afar Crease
Back
One partner benefits and the other is unaffected.
Commensalism
Mutually beneficial relationship between two organisms
Symbiosis
One organism derives benefit at the expense of another
Parasitism
A microorganism capable of infecting or parasitizing “Normal individuals”
Pathogen
Organisms that invade when unrestricted by the environment
Opportunist
Inhibition or suppression of growth of pathogens by the normal microbiota
Bacterial interference
Some degree of bacteremia during dental extraction
Transient Bacteremia
Sepsis or infective endocarditis
Continuous Bacteremia
Common location of transient microorganisms due to frequent contact with the environment
Skin
They continuously sample the microbiota colonizing the skin surface through pattern recognition receptors
Keratinocytes
Co-infection by two or more agents
Synergistic Infections
Microbial growth in this region is controlled by the flow of _____ which contain antibacterial lysozyme.
Answer the blank and the question.
Blank - Tears
Question - Eyes
