nematodes
Studied by 1 person
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt Play1/99
Name | Mastery | Learn | Test | Matching | Spaced |
|---|
No study sessions yet.
100 Terms
Which are called ‘roundworms’: cestodes, trematodes, or nematodes?
nematodes
Are nematodes multicellular or single-celled?
multicellular
What is the body wall called? (Acellular, protective outer layer)
cuticle
Where are the digestive and reproductive tract suspended in the nematode body?
pseudocoelom
(T/F) Nematodes have a respiratory system.
false
What kind of life cycle would be indicated if the nematode does NOT have an intermediate host?
direct
What family is the Toxocara/Toxacaris species from? (ex: Strongyloids, Rhabdiroids, Ascarids)
ascarids
Where is the primary location for roundworms / Toxicara canis in a dog?
small intestine
Where is the primary location for Toxocara cati / Toxacaris lonina (roundworms) in cats?
small intestine
What is the prepatent period for Toxocara canis?
21 to 35 days
What is the prepatent period for Toxacaris leonina?
74 days
Can the eggs of Parascaris equorum be recovered with standard fecal flotation?
yes
What is the prepatent period for Parascaris equorum?
75 to 80 days
What egg is this? (Bigger: 75-90um)
toxocara canis
What egg is this? (Smaller: 65-75um)
toxocara cati
What egg is this? (notice the layers)
toxascaris leonina
What is the common name for the Ancylostoma and Uncicaria spp?
hookworm
(T/F) Ancylostoma braziliense is a canine AND feline hookworm.
true
What severe condition can a hookworm infection cause in young puppies or kittens?
anemia
(T/F) Eggs of hookworms larvate rapidly in the environment.
true
Hookworm larvae may infect by ingestion or penetrating skin and come from the ___________.
environment
All hookworm eggs have an _____ shape.
oval
(T/F) A fresh stool sample is NOT needed for detecting hookworms.
false
(T/F) Hookworms are usually recovered with standard fecal flotation.
true
Why is a fresh stool sample needed for detecting hookworms?
What family are spp. Ancylostoma and Unicinaria from? (ex: Strongyloids, Rhabdiroids, Ascarids)
strongyloids
Where in the body are hookworms located?
small intestine
The common name for Unicinaria stenophala is…
northern canine hookworm
What egg is this? (common name)
hookworm
Where in the body do strongyles infect horses?
large intestine
What are the two types of strongyles?
large and small
Which type of strongyle is the most pathogenic?
large
(T/F) Strongyle eggs can be detected with standard fecal floatation.
true
What is the common name of Oesophagostomum dentatum?
nodular worm
What species does Oesophagostomum dentatum affect?
pigs
What is the prepatent period for Oesophagostomum dentatum?
50 days
The common name for Dictyocaulus spp. is…
lungworm
Dictyocaulus viviparus affects what species?
cattle
Dictyocaulus filaria affects what species?
sheep and goats
Dictyocaulus arnfieldi affects what species?
horses
What is the prepatent period for Dictyocaulus viviparus and Dictyocaulus filaria?
28 days
What is the prepatent period for Dictyocaulus arnfieldi?
42 to 56 days
What is the common name for Hyostrongylus rubidus?
red stomach worm
What species does Hyostrongylus rubidus affect?
pigs
What is the prepatent period for Hyostrongylus rubidus?
20 days
Strongyloides spp. are commonly referred as…
threadworms
Can threadworms (strongyloides spp.) reproduce without a male?
yes
What is the prepatent period for strongyloides spp. in dogs?
8 to 14 days
What species does Strongyloides westeri affect?
horses
(T/F) Threadworms can usually be detected with standard fecal floatation.
true
What is the prepatent period for Strongyloides westeri?
5 to 7 days
Strongyloides ransomi affects what species?
pigs
What is the prepatent period for Strongyloides ransomi?
3 to 7 days
Muellerius capillaris and Protostrongylus spp. are commonly called…
lungworms
What species do Muellerius capillaris and Protostrongylus affect?
sheep and goats
What kind of infection could this be? (common name)
threadworms
Can lungworms be detected with standard fecal floatation?
no
What technique is used to detect lungworms?
Baermann technique
Metastrongylus apri affects what species?
pigs
What is the common name for Metastrongylus apri?
lungworm
What is the prepatent period for Metastrongylus apri?
24 days
Filaroides spp. are commonly known as…
lungworms
What species does Filaroides spp. affect?
dogs
What is the prepatent period for Filaroides spp.?
10 weeks
What is the common name for Aelurostrongylus abstrusus?
lungworm
What species does Aelurostrongylus abstrusus affect?
cats
What is the prepatent period for Aelurostrongylus abstrusus?
30 days
The common name for Trichuris spp. is…
whipworm
Trichuris vulpis affects what species?
dogs
Trichuris serrata affects what species?
cats
Trichuris campanula affects what species?
cats
(T/F) Feline whipworms (Trichuris spp.) are common in North America.
false
Where in the body does Trichuris serrata and Trichuris campanula affect?
cecum and colon
Where in the body does Trichuris vulpus affect?
large intestine
What parasitic eggs (spp.) have polar plugs and are unlarvated when laid? (stewie)
trichuris
What is the prepatent period for Trichuris vulpis?
70 to 90 days
What GENERAL species does Trichuris ovis affect?
ruminants
What species does Trichuris suis affect?
pigs
What is the prepatent period for Trichuris ovis and Trichuris suis?
42 to 49 days
Oxyuris equi is commonly known as…
pinworm
What species does Oxyuris equi affect?
horses
What is the prepatent period for Oxyuris equi?
4 to 5 months
Habronema (microstoma, muscae) and Draschia megastoma are found where in the body?
stomach
What species does Habronema (microstoma, muscae) and Draschia megastoma affect?
horses
What specific condition can the larvae of Habronema (microstoma, muscae) and Draschia megastoma cause by parasitizing skin lesions?
summer sores
What is the prepatent period for Habronema (microstoma, muscae) and Draschia megastoma?
60 days
Dioctophyma renale is commonly known as…
kidney worm
What species does Doctophyma renale affect?
dogs
Which kidney does Dioctophyma renale affect?
right
(T/F) Dioctophyma renale can be detected by standard fecal floatation.
false
What kind of sample is needed to detect kidney worms?
urine
What test is needed to detect kidney worms?
urine sediment
What is the prepatent period for Dioctophyma renale?
18 weeks
What is the common name for Stephanurus dentatus?
kidney worm
What species does Stephanurus dentatus affect?
pigs
What is the prepatent period of Stephanurus dentatus?
9 to 24 months
Where in the heart and what artery can you find Dirofilaria immitis (heartworm)?
right ventricle and pulmonary artery
What is the prepatent period of Dirofilaria immitis in dogs?
6 months
What is the prepatent period of Dirofilaria immitis in cats?
7 to 8 months
What test can be done to detect microfilaria in the blood?
modified knotts test