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Microbiology
Microbiology -Chapter 14
| Question | Answer |
|---|---|
| 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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