18 Questions
What type of bacteria are typically found on the skin?
Gram-positive, salt tolerant
What is the role of the skin in the body?
First line of defense
What prevents colonization of the skin by pathogens?
Low pH, lysozyme, sebum, and indigenous microflora
What is a characteristic of infectious diseases?
Follow colonization of a body site by a pathogen
How many anatomical sites can be affected by infectious diseases?
One or more
What is not a characteristic of the skin's natural microbiota?
Pathogenic bacteria
What is the primary function of the eyelids?
To provide protection from trauma
What can cause fungal and protozoal infections of the cornea?
Organic material in the eye
What is the function of eye blinking?
To carry tears from the lacrimal gland to the lacrimal duct
What is keratitis?
A serious infection of the cornea
What is the function of tears?
To wash the eyes and help prevent infection
What is the function of the conjunctiva?
A major defense mechanism of the eye
What is the primary cause of eye infections in people who do not produce an adequate supply of tears?
Microorganisms
What type of bacteria is responsible for most cases of hordeola?
Staphylococcus aureus
What is the term for inflammation of the cornea?
Keratitis
What is the primary symptom of keratitis?
Eye pain
What is the common symptom shared by keratitis and conjunctivitis?
Mucopurulent discharge
What is the possible outcome of keratitis if left untreated?
Loss of vision
This quiz covers the normal microbiota of the skin, including gram-positive bacteria, and categories of microbial diseases affecting the skin and eyes.
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