Chapter 8 Key Terms Flashcards
What is Aerobic?
An Organism that requires oxygen to live.
What is Anaerobic?
Is a Organism that don’t require oxygen to live.
Colonization
Occurs when the pathogen microbes are present in the body without causing symptoms or a detectable immune response
Pathogen
Is an organism that causes disease in a host
Host
An infected person
Subclinical infection
No symptoms
Chain of infection
Infectious agent
Reservoir
Portal of exit
Mode of transportation
Portal of entry
Susceptible host
Bacteria
Are single called organisms
Spherical
Coccus
Rod
Bacillus
Spiral
Spirillum
Gram positive
Stain purple
Gram negative
Lose purple stain when exposed to alcohol but stain pink with second dye.
Rickettsia vectors
Infected fleas, ticks, mites and lice.
Viruses
Need a host to live and reproduce
Antibiotics are not effective. Antiviral meds help with symptoms.
Fungi
Yeast and molds
Protozoa
Are singles celled parasitic organisms. Protozoa feeds off of dead or decaying organic material.
Mode of transportation fecal oral contamination, ingestion of food or water contamination with cysts or spores, host to host contact or the bite of a mosquito or other insect that has previously bitten an infected person.
Helminths
Are wormlike parasitic like roundworms, flatworms, pinworms and flukes.
Trichinosis
Caused by roundworms is disease caused by eating raw or undercooked meat of pigs or wild animals that contain Trichinella larvae.
Vector borne transmission
Fleas, mice, mosquitoes, rats, or ticks
Cilia
Hair line structure lining the mucous membranes of the upper respiratory tract that protect the lungs.
Gastric ph
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