Study sets matching "parasitology nematode"

Study sets
Classes
Users

Study sets matching "parasitology nematode"

79 terms
Parasitology Nematodes
Round worms
Eggs are made by a female in the defin…
From the gut to the portal system to t…
The eggs are passed in feces and the n…
Nematodes are commonly called what?
Describe the life cycle of a nematode.
Describe hepatic-tracheal migration of a nematode.
How are nematodes transmitted?
Round worms
Nematodes are commonly called what?
Eggs are made by a female in the defin…
Describe the life cycle of a nematode.
41 terms
Parasitology (Nematodes)
Strongyloides (thread-worms)
Strongylus vulgaris (large strongyles)
Strongylus vulgaris
Oesophagostomum columbianum ( nodular…
Prepatent period =3-14 days... Infection site: Adults affect the…
Morphology: dark reddish color, anterior end bulbous with a c…
eggs
Morphology: buccal capsule varies in size, has a ventral groo…
Strongyloides (thread-worms)
Prepatent period =3-14 days... Infection site: Adults affect the…
Strongylus vulgaris (large strongyles)
Morphology: dark reddish color, anterior end bulbous with a c…
43 terms
Parasitology-Nematodes
nematode
List the characteristics of roundworms:
dioecious
Which roundworm has ascaroid/ascarid e…
roundworm
-unsegmented, elongate... -rounded on both ends... -circular in cro…
has both sexes
Toxocara canis
nematode
roundworm
List the characteristics of roundworms:
-unsegmented, elongate... -rounded on both ends... -circular in cro…
Parasitology - Nematodes
Toxocara canis
Toxocara cati
Toxascaris leonina
Baylisascaris procyonis
Canine roundworm
Feline roundworm
Canine & Feline roundworm
Raccoon roundworm
Toxocara canis
Canine roundworm
Toxocara cati
Feline roundworm
79 terms
Parasitology Nematodes
Round worms
Eggs are made by a female in the defin…
From the gut to the portal system to t…
The eggs are passed in feces and the n…
Nematodes are commonly called what?
Describe the life cycle of a nematode.
Describe hepatic-tracheal migration of a nematode.
How are nematodes transmitted?
Round worms
Nematodes are commonly called what?
Eggs are made by a female in the defin…
Describe the life cycle of a nematode.
57 terms
Parasitology Nematodes
What is the generalised morphology of…
What are some characteristics of ascar…
What are the 2 metastrongylids?
Trichostrongyle lifecycle
All longitudinal muscle... Inelastic cuticle to maintain turgor…
Parasitize the GI tract... Eggs have thick shells... Very fecund
Metastrongylus: large white lungworm in pigs... Angiostrongylida…
What is the generalised morphology of…
All longitudinal muscle... Inelastic cuticle to maintain turgor…
What are some characteristics of ascar…
Parasitize the GI tract... Eggs have thick shells... Very fecund
Parasitology NEMATODE
Pseudocoelomate
Muscles run which direction?
Type of skeleton?
Complex or simple NS?
Complete digestive tract, tripoblastic, not fully lined MESOD…
Longitudinally
Hydrostatic
Simple; Nerve ring around esophagus, preanal ganglion
Pseudocoelomate
Complete digestive tract, tripoblastic, not fully lined MESOD…
Muscles run which direction?
Longitudinally
Parasitology:Nematode
What is a Nematode?
Where can roundworms be found?
What are two sexes of roundworms?
How are eggs passed?
Roundworm
Intestines, Skin, Lungs, Kidneys, Bladder, Nervous tissues, m…
Male and Female
Eggs are shed or passed in the feces primarily
What is a Nematode?
Roundworm
Where can roundworms be found?
Intestines, Skin, Lungs, Kidneys, Bladder, Nervous tissues, m…
135 terms
Parasitology Nematodes
Nematodes - type of worms
Nematodes affect:
Morphology of Nematodes
Do nematodes have a body cavity?
Roundworms... Hookworms... Whipworms
Plants and animals
Unsegmented worms, rounded on both ends
Yes
Nematodes - type of worms
Roundworms... Hookworms... Whipworms
Nematodes affect:
Plants and animals
42 terms
Nematodes-parasitology
threadworm
What is scientific name for Guinea Worm?
what is the method of transmission for…
Filariae
has no eggs
Dracunculus medinesis
ingestion of water containing crustaceans infected with larvae
threadworm
has no eggs
What is scientific name for Guinea Worm?
Dracunculus medinesis
50 terms
Parasitology - Nematodes
Enterobius vermicularis
Enterobius vermicularis
Enterobius vermicularis
Ascaris lumbricoides
This small nematode lays sticky eggs at night. Eggs are flatt…
Gravid female worms migrate to the perianal region of the pat…
This adult nematode is characterized as having alae (wings) a…
This very large nematode is acquired by direct hand-to-mouth…
Enterobius vermicularis
This small nematode lays sticky eggs at night. Eggs are flatt…
Enterobius vermicularis
Gravid female worms migrate to the perianal region of the pat…
23 terms
Parasitology - Nematodes
Enterobius vermicularis ova
Trichuris trichiura ova
Ascaris lumbricoides ova fertilized
Ascaris lumbricoides ova unfertilized
Enterobius vermicularis ova
Trichuris trichiura ova
23 terms
Parasitology- Nematodes
Toxocara spp... (roundworms)
Toxascaris... (roundworms)
Ancylostoma spp... (Hookworms)
Strongyloides stercoralis... (Intestinal…
Toxocara spp... (roundworms)
Toxascaris... (roundworms)
9 terms
Parasitology - Nematodes
Enterobius vermicularis (pinworm)
Ascaris lumbricoides
Strongyloides stercoralis
Ancylostoma duodenale, necator america…
-Fecal oral... -Intestinal infection causing anal pruritis (scot…
-Fecal-oral, eggs visible in feces... -Intestinal infection... -Ben…
-Larvae in soil penetrate skin... -Intestinal infection causing…
-Larvae penetrate skin... -Intestinal infection causing anemia b…
Enterobius vermicularis (pinworm)
-Fecal oral... -Intestinal infection causing anal pruritis (scot…
Ascaris lumbricoides
-Fecal-oral, eggs visible in feces... -Intestinal infection... -Ben…
PARASITOLOGY nematodes
Soil transmitted helminths
Heart to lung migration
Unholy three
Frequency
HATS (hookworms, ascaris, trichiuris, strongyloides)
ASH (ascaris, strongyloides, hookworms)
H.A.T
EAT (enterobius, ascaris, trichuiris)
Soil transmitted helminths
HATS (hookworms, ascaris, trichiuris, strongyloides)
Heart to lung migration
ASH (ascaris, strongyloides, hookworms)
Parasitology nematodes
Nematode
Roundworms hookworms threadworms whipw…
Nematodes undergo incremental growth p…
Egg - L1 - L2 - L3 - L4 -adult L5
Most common parasite seen in practice that is a parasite of t…
Name common nematodes seen in practice
Describe the nematode lifecycle
Nematode lifecycle formula
Nematode
Most common parasite seen in practice that is a parasite of t…
Roundworms hookworms threadworms whipw…
Name common nematodes seen in practice
53 terms
Parasitology - Nematodes
What are the important Trichostrongylo…
What is the major PGE in cattle in Ire…
Describe the life cycle of O. ostertagi.
Describe the Pathogenesis of O. ostert…
Haemonchus ... Ostertagia... Teladorsagia... Nematodirus... Cooperia ... Tr…
Ostertagia ostertagi
Typical trichostrongyle LC... L4 burrows into abomasal glands
- Gastric gland loses function: reduction in # of zymogen (pe…
What are the important Trichostrongylo…
Haemonchus ... Ostertagia... Teladorsagia... Nematodirus... Cooperia ... Tr…
What is the major PGE in cattle in Ire…
Ostertagia ostertagi
Parasitology-Nematodes
Ancylostoma caninum
Ancylostoma tubaeforme
Ancylostoma braziliense
Unicnaria stenocephala
Dogs and foxes
Cats
Dogs and Cats ... *Zoonotic
Dogs, foxes and cats
Ancylostoma caninum
Dogs and foxes
Ancylostoma tubaeforme
Cats
21 terms
Parasitology- Nematodes
General characteristics of Nematodes
General characteristics shared of para…
Strongylida
Bursa of adult male... Order: strongylida
-free living or pasitic... -elongate/cylindrical... -alimentary can…
-Life cycle: direct, infection by L3... -Eggs: thin shelled; ova…
What order does this egg belong to?
What is this structure and what order of nematodes have this…
General characteristics of Nematodes
-free living or pasitic... -elongate/cylindrical... -alimentary can…
General characteristics shared of para…
-Life cycle: direct, infection by L3... -Eggs: thin shelled; ova…
39 terms
Parasitology Nematodes (Filaria)
Thread worms
Eggs are made in the female inside the…
Not zoonotic
The pre-patent period is longer for fi…
What are filaria commonly referred to as?
How are filaria transmitted?
Are filaria zoonotic?
What is unique about the filaria in comparison to other nemat…
Thread worms
What are filaria commonly referred to as?
Eggs are made in the female inside the…
How are filaria transmitted?
Parasitology - Nematodes
-definitive host: dog... -ppp: 6 weeks... -s…
- definitive host: cat... -ppp: 7 weeks... -…
-ppp:6-9 weeks... -small intestine... -mode…
Baylisascaris procyonis ... (racoon round…
Toxocara canis:
Toxocara cati:
Toxascaris leonina:
Baylisascaris procyonis
-definitive host: dog... -ppp: 6 weeks... -s…
Toxocara canis:
- definitive host: cat... -ppp: 7 weeks... -…
Toxocara cati:
359 terms
Parasitology (nematodes)
What are the 2 primary goals of nemato…
Describe the pseudocoelom of nematodes.
What will you find in the dorsal & ven…
What will you find in the lateral cords?
Eating & copulating :)
Body cavity- fluid filled under pressure so worm can move
Major nerves required for finding mates, motility, etc.... Targe…
Excretory system
What are the 2 primary goals of nemato…
Eating & copulating :)
Describe the pseudocoelom of nematodes.
Body cavity- fluid filled under pressure so worm can move
PARASITOLOGY(NEMATODES)
HOW ARE HUMANS INFECTED WITH ASCARIS
WHY DO ASCARIS CAUSE LOFFLER'S SYNDROME
WHAT DO DECORTICATED MEAN
ASCARIS IS MOST LIKELY TO BE CONFUSED…
INGESTION OF EGGS
IT TRAVELS THROUGH THE LUNGS
LOSS OF MAMMILLATED COAT
TRICHOSTRONGYLUS FOR UNFERTILIZED EGG AND HOOKWORK FOR FERTIL…
HOW ARE HUMANS INFECTED WITH ASCARIS
INGESTION OF EGGS
WHY DO ASCARIS CAUSE LOFFLER'S SYNDROME
IT TRAVELS THROUGH THE LUNGS
7 terms
Parasitology- Nematodes
Rhabditoidae is a super family of nema…
What are Strongiloididae (family of RH…
Strongyloides can survive as a free li…
What are the main species of strongylo…
Rhabditidae and Strongiloididae
Nematodes (female pathogenic) of the small intestines (or sto…
Strongiloididae larvae are un-sheathed and so are susceptible…
S. westeri- horses... S- ransomi- pigs... S. papillosus- cows and s…
Rhabditoidae is a super family of nema…
Rhabditidae and Strongiloididae
What are Strongiloididae (family of RH…
Nematodes (female pathogenic) of the small intestines (or sto…
16 terms
Parasitology nematodes
Toxocara
Ancylostoma caninum
Ancylostoma braziliense
Ancylostoma tubaeforme
Roundworm
Canine hookworm
Cat and dog hookworm
Feline hookworm
Toxocara
Roundworm
Ancylostoma caninum
Canine hookworm
96 terms
Parasitology nematodes
Toxocara canis
Toxocara canis life cycle direct trans…
Toxocara canis life cycle somatic migr…
Toxocara canis life cycle transplacent…
Canine ascarid... Host: dog... Habitat: SI for adults, lungs/liver/…
Dog <3 months... 1. egg with L2 ingested by puppy, which hatches…
Dog > 3 months... 1. egg with L2 ingested by dog, which hatches…
1. L2 encysted in tissues of adult pregnant bitch, mobilizes…
Toxocara canis
Canine ascarid... Host: dog... Habitat: SI for adults, lungs/liver/…
Toxocara canis life cycle direct trans…
Dog <3 months... 1. egg with L2 ingested by puppy, which hatches…
12 terms
Parasitology - Nematodes
Morphology
Alimentary Tract
Oesophagus
Intestine
Circular in corss-section, elongate, tapered at both ends and…
- tubular and complete... - in many nematodes, mouth is a simpl…
Usally muscular and of variable form:... -> Filariform - bursat…
Tube whose lumen is enclosed by a single layer of cells... Femal…
Morphology
Circular in corss-section, elongate, tapered at both ends and…
Alimentary Tract
- tubular and complete... - in many nematodes, mouth is a simpl…
110 terms
Nematodes - Parasitology
Nematodes are also called
Describes nematode abdominal cavity
nematodes have three body layers:
nematodes have __________ muscles that…
roundworms
fluid-filled pseudocoelom
ectoderm, mesoderm, and endoderm
longitudinal; S-shaped
Nematodes are also called
roundworms
Describes nematode abdominal cavity
fluid-filled pseudocoelom
18 terms
Parasitology (Nematodes)
K: Animalia, P: Nematheminthes, Roundw…
Key Morphologic structures:
Cuticle
Muscular layer
Toxocara, Toxascaris, Ancylostoma, Trichuris, Capillaria, Dir…
Cuticle, Muscular layer, Digestive tract
outside, provides protection, secreted by hypodermis, can reg…
only way they can move, underside
K: Animalia, P: Nematheminthes, Roundw…
Toxocara, Toxascaris, Ancylostoma, Trichuris, Capillaria, Dir…
Key Morphologic structures:
Cuticle, Muscular layer, Digestive tract
parasitology nematodes
Toxocara
Toxascaris
Parascaris equorum
ascaridia
roundworm, dogs and cats, ZOO(causes blindness), direct, (can…
arrowhead worm, dogs and cats, small intestine, direct, vomit…
equine roundworms, equine, small intestine, direct with trach…
bird roundworms, birds, small intestine, direct, enteritis he…
Toxocara
roundworm, dogs and cats, ZOO(causes blindness), direct, (can…
Toxascaris
arrowhead worm, dogs and cats, small intestine, direct, vomit…
Parasitology: Nematodes
Routes of Infection for Helminths
Phylum Nematoda
Nematode morphology
Nematode Intestine and reproductive sy…
All helminths use one or more to infect the host: ... Ingestion…
Most successful of all the worm forms, many free living speci…
Body surface made of "cuticle"... Flexible, not very metabolical…
Fluid hemolymph filled body cavity: intestine and reproductiv…
Routes of Infection for Helminths
All helminths use one or more to infect the host: ... Ingestion…
Phylum Nematoda
Most successful of all the worm forms, many free living speci…
Parasitology - Nematodes
Order Strongylida..what are superfamil…
Superfamily Ascaridoidea....what are g…
general Strongylid life cycle characte…
Ostertagia ostertagi
Trichlostrongyloidea... Strongyloidea... Ancylostomatoidea... Metastro…
Ascaris suum... Parascaris spp... Toxocara (canis, cati)... Balyisasca…
...
definitive host:... PPP:... life cycle:... disease:... treatment:
Order Strongylida..what are superfamil…
Trichlostrongyloidea... Strongyloidea... Ancylostomatoidea... Metastro…
Superfamily Ascaridoidea....what are g…
Ascaris suum... Parascaris spp... Toxocara (canis, cati)... Balyisasca…
Nematodes-- parasitology
Nematode
Nematode
nematode life cycle
nematode
One of the most abundant group of animals on the planet
Reproduce sexually. Ova eggs laid by female... Larvae develop in…
Egg -->L1 --> L2 --> L3 (infective stage) --> L4 --> L5 --> A…
Relatively nonpathogenic at low numbers but can reproduce rap…
Nematode
One of the most abundant group of animals on the planet
Nematode
Reproduce sexually. Ova eggs laid by female... Larvae develop in…
Parasitology- Nematodes
Diplidyium caninum organ/ species affe…
Diplidyium caninum IH
Diplidyium caninum life cycle
Diplidyium caninum metacestode
Cucumber seed tapeworm... SI dogs, cats, humans... Cyclophyllidean…
Flea, dog louse
Gravid proglottids dropped in feces... Egg packets release and e…
Cysticercoid
Diplidyium caninum organ/ species affe…
Cucumber seed tapeworm... SI dogs, cats, humans... Cyclophyllidean…
Diplidyium caninum IH
Flea, dog louse
Nematodes-Parasitology
Nematode (Phylum):
Cuticle:
Oviparous:
Ovoviviparous:
Roundworms
Thin layer that covers roundworms
Females lay eggs with undeveloped embryo
Females lay eggs containing a first stage larva
Nematode (Phylum):
Roundworms
Cuticle:
Thin layer that covers roundworms
Parasitology Nematodes
Trichuris trichiura
Capillaria hepatica
Trichinella spiralis
T. nativa
whipworms... bacillary band containing pores, stichosome (sticho…
liver... eggs laid in parenchyma of liver, IH ingested, eggs pas…
trichinosis... same indv is IH and DH... adults in intestine, **inf…
trichinosis... sylvatic... freeze resistant, arctic
Trichuris trichiura
whipworms... bacillary band containing pores, stichosome (sticho…
Capillaria hepatica
liver... eggs laid in parenchyma of liver, IH ingested, eggs pas…
PARASITOLOGY (nematodes)
Morphological form/stages
Egg
Larvae
Adult worms
Eggs... Larvae... Adult worms
Vary sizes and shapes
Long and slender
Separate sex
Morphological form/stages
Eggs... Larvae... Adult worms
Egg
Vary sizes and shapes
148 terms
Parasitology - nematodes
Nematodes are Numerous and diverse gro…
Where do free-living nematodes reside?
What is the correlation between parasi…
What kind of organisms are nematodes,…
Free-living nematodes, Nematodes parasitizing plants, Nematod…
residing in marine water, freshwater and soil
Large animals = veterinary fees and death, Plant nematodes ca…
Multicellular. Unsegmented, elongate, rounded on both ends. C…
Nematodes are Numerous and diverse gro…
Free-living nematodes, Nematodes parasitizing plants, Nematod…
Where do free-living nematodes reside?
residing in marine water, freshwater and soil
40 terms
Parasitology Nematodes
Name hookworms
how did animal acquire hookworms
What is a toxacaris leonina
how did dog acquire toxocara leonina
Ancyclostoma caninum... Uncinaria stenocephala
1. L3 ingestion from environment or infected animal... 2. larval…
roundworm in cat dog
ingestion embryonated eggs
Name hookworms
Ancyclostoma caninum... Uncinaria stenocephala
how did animal acquire hookworms
1. L3 ingestion from environment or infected animal... 2. larval…
16 terms
Parasitology - Nematodes
Which nematode/roundworms ORDER has a…
Which nematode/roundworms ORDERS have…
Order Strongylida = bursa: Trichostron…
Order Strongylida = bursa: Strongyloid…
Strongylida
Rhabditida, Ascaridida, Oxyurida
Buccal capsule small, direct lifecycle, infection by L3
Buccal capsule well developed, often leaf crowns and teeth; d…
Which nematode/roundworms ORDER has a…
Strongylida
Which nematode/roundworms ORDERS have…
Rhabditida, Ascaridida, Oxyurida
Parasitology: Nematodes
Morphology of nematodes?
Nematodes sex?
Female nematodes sex?
Nematode eggs hatch and pass through...?
Cylindrical, unsegmented, with a complete digestive tract, co…
Diecious, females longer than males, males curved ventrally
Viviparous or oviparous
3 developmental stages before becoming infective, each stage…
Morphology of nematodes?
Cylindrical, unsegmented, with a complete digestive tract, co…
Nematodes sex?
Diecious, females longer than males, males curved ventrally
23 terms
Parasitology - Nematodes
Describe 3 facts of nematodes
Nematodes undergo incremental growth p…
Usually __ larval stages and variation…
Nematode found in dogs and wild canids…
- Vary in size from the microscopic to the very large (>1m or…
molts of the cuticle
Usually 4larval stages and variations among parasites as to…
Toxocara canis
Describe 3 facts of nematodes
- Vary in size from the microscopic to the very large (>1m or…
Nematodes undergo incremental growth p…
molts of the cuticle
Parasitology- Nematodes
Hosts of Enterobius vermicularis (pinw…
How does one acquire Enterobius vermic…
What body part does Enterobius vermicu…
What do Enterobius vermicularis eggs/a…
DH: Man
Inhales/ingests eggs from environment
Intestine
Eggs- ovular with one flattened side and one curved side with…
Hosts of Enterobius vermicularis (pinw…
DH: Man
How does one acquire Enterobius vermic…
Inhales/ingests eggs from environment
Parasitology - The Nematodes
What kingdom and phylum are nematodes…
What parasites are considered Nematode…
Key Morphologic Structures:
Nervous System
K:Animalia P:Nemathelminthes
-Toxocara... -Toxascaris... -Ancylostoma... -Trichuris... -Capillaria... -Di…
Cuticle, Muscular Layer, Digestive Tract
They have no brain,... acetylcholine is main neurotransmitter:…
What kingdom and phylum are nematodes…
K:Animalia P:Nemathelminthes
What parasites are considered Nematode…
-Toxocara... -Toxascaris... -Ancylostoma... -Trichuris... -Capillaria... -Di…
Parasitology: Nematodes
The following characteristics pertains…
A cat was brought to your clinic with…
You are trying to determine what speci…
This strongyle is found in equine, can…
Nematoda
Ancylostoma tubaeforme
Uncinaria stenocephala
Strongylus equinus
The following characteristics pertains…
Nematoda
A cat was brought to your clinic with…
Ancylostoma tubaeforme
29 terms
Parasitology- Nematodes
Kittens are most likely to get roundwo…
A route of infection by hookworms that…
Hookworms resemble
Heartworms intermedate host
Transmammary
Skin Penatration
Strongyle
Mosquito
Kittens are most likely to get roundwo…
Transmammary
A route of infection by hookworms that…
Skin Penatration
66 terms
Nematodes (Vet tech Parasitology)
Spirocera lupi
Physaloptera species
Aonchotheca putorii
Ollulanus tricuspis
esophageal worm; infects canines and felines; "paper clip" sh…
canine and feline stomach worm; larvated eggs
gastric capillarid of cats
feline trichostrongyle
Spirocera lupi
esophageal worm; infects canines and felines; "paper clip" sh…
Physaloptera species
canine and feline stomach worm; larvated eggs
165 terms
Parasitology Exam 2- Nematodes
What are sea lice?
What are copepods?
What is an intermediate host?
What is a paratenic host?
arthropods that may change hosts, spread disease and cause sk…
Anchor worms- egg sacks and trunk stay external, rest penetra…
Serves as temporary but necessary environment for completion…
Not necessary for life cycle of organism, but can be used to…
What are sea lice?
arthropods that may change hosts, spread disease and cause sk…
What are copepods?
Anchor worms- egg sacks and trunk stay external, rest penetra…
Parasitology lecture 2 Nematodes
Type of egg: Ascaroid or Ascarid
Type of egg: Trichostrongyle or strong…
Type of egg: Spiruriod or spirurid
Type of egg: Trichinelloid or trichuroid
thick walled, round nucleus. EX: Toxocara Canis
Thin clear shell, may have larve. EX: Ancylostoma caninum
"paper clip" EX: Spirocerca lupi and Physaloptera spp.
"football" plugs at each end. EX: Trichuris vulpis (whipworm…
Type of egg: Ascaroid or Ascarid
thick walled, round nucleus. EX: Toxocara Canis
Type of egg: Trichostrongyle or strong…
Thin clear shell, may have larve. EX: Ancylostoma caninum
Parasitology - Equine Nematodes
Strongylus vulgaris [large strongyles]
Strongylus equinus & Strongylus edenta…
Small strongyles
Parascaris equorum (ascarid)
Bloodworm
Bloodworm
40 different species... Make up majority of equine worm load
Roundworm
Strongylus vulgaris [large strongyles]
Bloodworm
Strongylus equinus & Strongylus edenta…
Bloodworm
1 of 10