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Microbiology -Chapter 14

langerhans cells, which play a role in defense against microbes, are located in the: epidermis
the papillary layer of the skin is part of the: dermis
organism that is the causative agent for skin infections and toxic shock syndrome: staphylococcus aureus
a type of acute infection generally caused by group A Streptococcus: necrotizing fascitis
organism often called "flesh-eating bacteria" is: streptococcus pyogenes
acne is caused by: propionibacterium acnes
warts are commonly caused by: human papillomavirus
herpes simplex infections on the lips and in the mouth are most commonly caused by: HSV-1
"athletes foot" is caused by: tinea pedis
diaper rash in infants is commonly caused by: candida albicans
leprosy is caused by: mycobacterium laprae
infections that result in the death of infected tissue are called: necrotizing infections
chickenpox and shingles are caused by the: varicella-zoster virus
fungal infections of the skin are referred to as: mycoses
a tinea infection in the groin area is commonly called: jock itch
Describe the different types warts according to shape and site infected. Common—raised, rough edges; gray or brown; found mostly on hands around nails and knees. Flat—small, smooth, flattened; tan/flesh color; face, neck, hands, wrist, knees. Filiform or digitate—fingerlike (threadlike); face near eyelids and lips. Plantar—
Describe the most common staphylococcal skin infections. Furuncles (boils)—abscesses that begin in the hair follicle and spread to the surrounding dermis. Lesion appears as a hard, red nodule that develops into a large painful mass that often exudes pus. Cellulitis—acute infection of dermis and subcutaneous ti
Describe the most common streptococcal skin infections. Erysipelas—acute infection by group A streptococcus; usually found on face or on legs; similar to cellulitis but edges of infected area are raised and well defined. Acute necrotizing fasciitis—infection of deep layers of skin and subcutaneous tissue by t
Discuss the occurrence of smallpox and smallpox vaccination. WHO certified the eradication of smallpox in 1979 after a successful vaccination campaign that began in 1967. Before the eradication, epidemics spread across entire continents, drastically reducing world population. Due to concern for the use of smallpox
Describe the different types of subcutaneous mycoses. Chromoblastomycoses—chronic localized infection characterized by verrucoid lesions, usually located in lower extremities. Mycetomas—a chronic infection beginning as a subcutaneous nodule after injury, which may go deeper, even to the bone. The site swell
Created by: naponte1



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