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CH. 21 Diseases of Skin and Eyes Micro
Terms in this set (57)
Sebum and perspiration, what kind of environments are they?
Sebum is acidic. Perspiration is hypertonic.
What in sebum makes the acidic environment?
Sebum hydrolyzes (is cut) into fatty acids which makes acidic environment.
What is the function of lysozyme in perspiration?
Cuts peptidoglycan bonds
Subcutaneous layer is rich in?
adiopocytes (fat storing cells)
epidermis layer is full of?
how does sweat prevent the penetration of microbes?
sweat rinses the skin & ducts blocking entry for microbes.
Epithelial cells in the mucous membrane are attached to?
the extracellular matrix (carbohydrates & proteins outside of cells that hold cells together).
what kind of environment is the mucous membrane?
Acidic, therefore has low pH and inhibits microbes.
the cells in the mucous membrane secrete?
glycoproteins, salt, water, antimicrobal proteins
enzyme that clots blood
What kind of environment do pseudomonas live in?
moist (inhospitable) enviro's like soap film, poorly chlorinated pools & hot tubs.
cause of Otitis externa (swimmer's ear)
what is the name of the bacteria in pseudomonas that produces a blue-green pus?
this skin infection is gram negative, opportunistic and aeorobic rob?
these skin infections are common amongst swimmers and post burn patients?
how do topical and systemic drugs kill acne?
topicals clear away dead cells. systemic drugs reduce sebum production.
severe acne, permanent scars, cysts
white heads and blackheads?
lesions with redness and swelling?
what disease is caused by varicella-zoster (human herpes3)
what disease is caused by papillomaviruses?
cryotherapy in warts freezes them, electrodessiccation sends electric currents to kill affect cells, bleomyin prevents growth (cleaves DNA), what does imiquimod treatment in warts do?
signals interferons to make antiviral peptides which kill affected cells
where does chickenpox/shingles remain latent in your body?
in your dorsal root ganglia
this infection of the skin kill neutrophils, is lysozome & opsonization resistant, survives in phagolysosomes ?
staphylococcal skin infections
in streptococcal infections, hyaluronidase digests?
hyaluronic acid holding tissues together
in streptococcal infections, hemolysins/streptolysins do what?
lyse blood cells & neutrophils
hyaluronic acid is?
a capsule of same material found in human tissue
Acyclovir lessens the symptoms of this?
shingles and Herpes encephalitis
name all the viral skin infections?
chicken pox/shingles, HSV-1 and 2, small pox and measles
how is measles and chicken pox transmitted?
via respiratory route
where does HSV-1 remain latent in
trigeminal nerve (peripheral nerve in head)
also known as the variola virus
this disease is feared as a bioweapon
variola, small pox
in measles red spots are referred to as? White Lesions are?
Macular Rash-red lesions. Kolik's spots-white
dermatomycoses are fungal infections that occur in dermis that grow in?
keratin rich environments
what do most treatments of deratomycoses inhibit?
ergosterol synethesis (important part of fungal membranes)
ringworm, athletes foot, jock's itch are all diseases that..
are associated with tinea: mycose infections of dermis or epi dermis
candida (yeast infection) of mouth, mucous membrane
candidiasis may result from
suppressed immune system or suppression of competing bacteria by antibiotics
candidiasis occurs in
mouth, gentiourinary tract and skin
associated with pink eye
commonly caused by microbe haemophilus influenzae
caused by neisseria gonorrhoeae
common cause of blindness
leading cause of blindness
infection causes permanent scarring; scars abrade the cornea leading to blindess
transmitted to eyes during passage thru birth canal as well as swimming pools
causes pus-filled vesicles on the skin
raised lesion containing pus
positive (coagulase) staphylococcal skin infections are
associated with virulence factors, pathogenic
white heads and black heads usually treated with topics
comedonal mild acne
negative (coagulase) staphylococcal skin infection are
overproduction in hair follicles in which hair follicles become blocked and bacteria metabolize sebum & dead cells grow is known as
small raised lesion
causes an intense itchy rash
scabies; mites burrow in skin to lay eggs
variola major is what % mortality
is an indictator of a suppressed imune system
candidiasis yeast infection.
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