Infections of the skin Flashcards
1
Q
Role of commensal microbiota on the skin
A
compete with pathogens for colonisation sites
2
Q
How does the skin act as a barrier to microbial infection?
A
Hard, dead cells, dry surface constant sloughing acidic pH Sweat Rich blood and lymphatic supply Produced antimicrobial substances (sebum, fatty acids, defensins)
3
Q
Examples of normal skin microbiota
A
staph aureus or epidermidis
candida sp(albicans)
proprionibacterium acnes
4
Q
where do skin nfections occure?
A
keratinised epithelium, epidermis, follicles, subcutaneous fat
5
Q
Routes of infection
A
skin wounds bites
6
Q
What can cause a skin infection?
A
bacteria, funchi, viruses
7
Q
Bacterial infections of the skin
A
staph aureus
streptococcus pyogenes
pseudomona aeuginosa
8
Q
fungal infection
A
tinea corporis.. candida albicans (yeast)
9
Q
virus infetion
A
HPV
herpes simplex virus 1 and 2
Varicella zoster virus
10
Q
parasites
A
sarcoptes scabei - causes scabies
