Ectoparasites
These are parasites that live outside the host
False: All human lice are permanent ectoparasites
True or false: not all human lice are permanent ectoparasites
Pediculus ssp.
What is the scientific name of the species of human lice?
Pediculus humanus humanus
Body lice are also known as?
Pediculus humanus capitis
Head lice are also known as?
Phthirus pubis
This is the smallest kind of louse which colonizes the genital or perianal region of the body.
Pediculosis
What is the term used to refer to the presence of lice on any part of the body?
Plica polonica
_____ is an acute hair matting that is a result of the combination of physical, chemical, and behavioral factors.
Follicle mites
The Demodox spp. are also known as?
False - Demodex brevis and Demodex folliculorum
True or false: The Demodex spp. Has two species: Demodex brevis and Demodex folliculora
True
True or False: Bacterial Infections that are transmitted by body lice can occur by rubbing infected louse feces or the hemolymph into abraded skin or into the conjunctivae.
Sarcoptes scabinae
This causes scabies and mange by burrowing into the skin of man
Traditional scalp infection, wet combing
Identify two ways on how to diagnose head lice
Secondary bacterial infection
Toxic secretions of ectoparasites can lead to intense itching. Scratching these would irritate the lesions and induce __________.
By finding the parasites or their eggs through microscopic examination of skin scrapings of the infected areas.
Given the burrowing behavior of the mite, how can a definite diagnosis of scabies be made?
Mineral oil
What liquid could be applied to the skin in order to tease out a mite and make it resurface?
Enterobius vermicularis (Nematode)
Common internal parasite or helminth
Adult Female- Enterobius vermicularis
Thin, long, straight posterior end or pointed tail which is the characteristic that gave this species its common name, pinworm
Retrospection
The hatching of the embryonated eggs after their deposition in the perianal area, and subsequent migrations of the larvae back into the rectum and large intestine is a type of autoinfection described as…
Enterobiasis
Intestinal obstruction
Trichomonas vaginalis
This parasite passes from an infected person to an uninfected person during sexual intercourse
Trichomonas tenax
Oral trichomonas
180 million
How many are infected with Trichomoniasis worldwide?
Perianal Cellulose Tape Swab- Scotch Adhesive Tape Swab
Diagnosis of pinworm infection
In the urethra and the prostate
Where does the trichomonas vaginalis reside in the male host?
1-2 days
How many days does it take for the infectivity of the eggs of Enterobius vermicularis to occur in a warm/dry environment?
FALSE- It only takes about 1 month
TRUE OR FALSE. The time interval from the ingestion of infective eggs to ob positions by the adult females is about 2 months.
Nitroimidazoles
Treatment for Trichomoniasis
FALSE- it includes INDOOR overcrowding, poor sanitation, and poor personal hygiene
TRUE OR FALSE. The risk factors of enterobiasis includes outdoor overcrowding, poor sanitation, and poor personal hygiene
Venereal
It affects both sexes (through penis-to-vagina intercourse or vulva-to-vulva)
FALSE- It must be Mebendazole
TRUE OR FALSE. One of the treatments for enterobiasis includes Metronidazole
Sarcoptes scabiei
Identify the parasite
Enterobius vermicularis
Identify the parasite
Trichomonas vaginalis
Identify the parasite
Pediculus humanus capitis
Identify the parasite
Phthirus pubis
Identify the parasite
Enterobius vermicularis
Identify the parasite
Studied by 57 People
