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External parasites

Materials needed for skin scrapings Clippers, scalpel, mineral oil, microscope
1st step for skin scraping Clip area of interest
2nd step for skin scraping Drop of mineral oil on skin
3rd step for skin scraping Hold 10 blade between thumb and forefinger
4th step for skin scraping Scrape blade on skin, perpendicular
5th step for skin scraping Scrape skin off with mineral oil on slide
Cellophane tape prep: lice or mites on skin Cellophane tape to area, drop of mineral oil on slide, place tape on mineral oil
Yeast or bacteria on skin Cellophane tape to area, drop of sedistain, tape on sedistain
Impression smear: yeast or bacteria on skin Press slide on area of interest, let dry, stain
Ectoparasites Live on or in the skin surfaces and feeds on them
Produce infestations Ectoparasites
Arthropods jointed legs
Kingdom, Phylum, Class, Order, Family, Genus, Species King Philip came over for good spaghetti
Phylum: Arthropoda Class: Insecta, Order: Hymenoptera Ants, bees, wasps
Class: Insecta, Order: Hemiptera; True bugs” Some are wingless, some have two sets of wings,
Bed bugs Dorsally flattened, wingless
Class: Insecta, Order: Mallophaga and Anoplura Lice
Mallophaga Biting or chewing
Mallophaga Smaller, yellow, large round head,
Mallophaga Parasitize birds, dogs, cats, cattle, sheep, goats, and horses
Anoplura Sucking
Anoplura Red to grey in color
Anoplura DO NOT parasitze cats or birds
Anoplura Dots ally flattened, wingless, 3 body divisions
Created by: JODY84



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