General Characteristics of Nematodes Flashcards
Nematodes basically named as _________
> Roundworms
Elongated, Cylindrical, _______ worms with tapering ends.
> Unsegmented
Thick hyaline protective coating; defense mechanism.
> Cuticula
Male is generally _______ than female with posterior end which is either ________ or _______
> Smaller, Curved, Coiled
Separate Sexes (Male & Female)
> Dioecious
Complete with mouth, nervous system and digestive system.
All the nutrients eaten by the children were also eaten by the parasites; there trying to find the host so that they can benefit.
One host and More than one host in nematodes.
Homoxenous and Heteroxenous
All are equipped with amphid _______, and what is the directional anatomical term for this question?
Cephalic Chemoreceptor and Found Anteriorly
Give the 2 correct answer
All are equipped with ______ , (________) Found Posteriorly
Phasmid and Caudal Chemoreceptor
What TTC Stands for?
Aphasmidea (adenoohorea)
Trichuris trichichiura, Trichinella spiralis, Capilaria
What SAHE Stands for?
Phasmidea (secerrnentia)
- Strongyloides stercoralis
- Ascaris lumbricoides
- Hookworm
- Enterobius vermicularis
What is the species for the common name of “Pudoc Worm (Ilocos Norte)?
> Capillaria phillipinensis
What is the species for the common name of Giant intestinal roundworm/ Eel worm/ Roundworm of man?
How many inches?
Ascaris lumbricoides for almost 12 in.
What is the species for the common name of Threadworm?
> Strongyloides stercoralis
What is the species for the common name of NEW WORLD hookworm and OLD WORLD hookworm?
Necator americanus and Ancylostoma duodenale
What is the species for the common name of Whip worm with whip structure in what part?
Trichuris trichiura, Anterior part
What is the species for the common name of Pinworm/Seatworm and it can be transmitted via what?
Enterobius vermicularis and can be transmitted via air
Give the 2 species in Intestinal-Extra Intestinal Nematodes
Common Names:
1. Trichina worm or PORK MUSCLE Roundworm
2. Guinea worm, Dragon worm, Serpent worm
- Trichinella Spiralis
- Dracunculus Medinensis
Give the 2 species in Blood and Tissue Nematodes (Lymphatic System)
Common Names:
1. Bancroft filarial
2. Malayan filarial
- Wuchereria Bancrofti (can cause Elephantiasis)
- Brugia Malayi
Give the 3 species in Blood and Tissue Nematodes (Subcutaneous Tissue)
Common Names:
1. Eye worm
2. Convoluted filarial
3. Formely known as Dipetalonema streptocerca Parasite of chimpanzee
- Loa Loa
- Onchocerca Volvulus
- Mansonella Streptocerca
Give the 2 species in Blood and Tissue Nematodes (Serous Cavities)
Common Names:
1. Ozzard filarial/”New World Filaria”
2. Persistent filarial
- Mansonella Ozzardi
- Mansonella Perstans
Enumerate the Species in Primarily Zoonotic Nematodes
Common Names:
1. Ascaris of Dogs
2. Ascaris of Cats
3. Hookworm of Dogs
4. Hookworm of Cats
5. DOG Heart Worm
6. RAT lung worm
- Toxocara Canis
- Toxocara Cati
- Ancyclostoma Caninum
- Ancyclostoma Braziliensi
- Dirofilaria Immitis
- Angiostrongylus Cantonensis
Types of Female Nematodes:
- Eggs without fully developed larva
- Fully developed larva, do not produce egg
- Eggs with fully developed larva
- Oviparous
- Viviparous
- Ovoviparous
Species name in Oviparous.
- Ascaris lumbricoides
- Trichuris trichiura
- Hookworms
Species name in Viviparous.
- Trichinella spiralis
- Dracunculus medinensis
- Filarial worms
Species name in Ovoviparous.
- Enterobius vermicularis
- Strongyloides stercoralis
With flattened bipolar plugs.
> Typical Ova
Without flattened bipolar plug.
> Atypical Ova
Ingestion of __________ (Viable to become infective) and what are the species name?
Embryonated Egg
1. Ascaris lumbricoides
2. Trichuris trichiura
3. Enterobius vermicularis
Ingestion of ________ within Intermediate Host and what are the species name?
Larvae
1. Dracunculus medinensis
2. Capillaria philippinesis
Ingestion of Encysted Larvae in ________ and the species name?
Muscle of Definitive Host
1. Trichinella spiralis
Skin Penetration of ________ and what are the species name?
Filariform Larva
1. Hookworms
2. Strongyloides stercoralis
Skin Inoculation of _______ and the species name?
Third Stage Larva
1. Filarial worms
Inhalation of ________ and what are the species name?
Dust containing Embryonated Egg (RARE)
1. Ascaris lumbricoides
2. Enterobius vermicularis
Species in Heart to Lung Migration.
- Hookworm
- Ascaris
- Strongyloides
- Migration of immature or larva in various parts of the body.
- Do not develop into adult worms but only elicit swelling, creeping eruption.
> Larva Migrans
Species of Visceral Larva Migrans?
- Toxocara canis
- Toxocara cati
- Ascaris suum: pigs
- Baylisascaris procyonis: racoon roundworm
Species for Cutaneous Larva Migrans (Creeping Eruption) “Sandworm disease”
- Ancylostoma caninum
- Ancyclostoma braziliense
Specimen for Visceral Larva Migrans and Cutaneous Larva Migrans?
- Blood
- Skin scrape
Eosinophilia for Visceral Larva Migrans and Cutaneous Larva Migrans?
- Usually seen
- Rarely seen
Transmission for Visceral Larva Migrans and Cutaneous Larva Migrans?
- Migrate through various internal organs.
- Migrate through the skin of the host.
Serological Test for Visceral Larva Migrans and Cutaneous Larva Migrans?
- Well Developed
- Not well developed