Nematodes Part II

The flashcards below were created by user Marytaylor on FreezingBlue Flashcards.

  1. Image Upload
    Eggs, part of larvae and empty shell of Dictyocaulus arnfeldi. Lungworms of horses
  2. Image Upload
    • Dictyocaulus filaria
    • Lungworm of sheep, goats and deer
  3. Image Upload
    • Strongyloides papillosus
    • Intestinal threadworm of cattle, sheep and swine.
  4. Image Upload
    Metastrongylus apri - Lungworms of pigs
  5. Image Upload
    • Strongyloides stercoralis
    • Intestinal threadworm of dogs, foxes, cats and man
  6. Image Upload
    Found in
    Strongyloides larvae normally appear in freash feces of infected dogs - eggs are not usually seen.
  7. Image Upload
    Strongyloides stercoralis X400
  8. Image Upload
    • A = Strongyloides westeri
    • B = Strongyles sp. X100
  9. Image Upload
    Strongyloides westeri - eggs are embryonated when laid
  10. Image Upload
    • Strongyloides papillosus X100
    • "Intestinal threadworm" of cattle, sheep, goats and rabbits.
  11. Image Upload
    Strongyloides papillosus - eggs are embryonated when laid
  12. Image Upload
    • Spirocerca lupi
    • Esophageal worm of dogs and foxes
  13. Image Upload
    Spirocerca lupi eggs X400
  14. Image Upload
    Spirocerca nodules in the lumen of the esophagus. Adult worms are seen in the granulomous lesions.
  15. Image Upload
    Sarcoma in the esophagus due to Spirocerca sp.
  16. Image Upload
    Opened esophagus of a dog with 3 distinct nodules produced by Spirocerca sp.
  17. Image Upload
    • Spirocerca eggs
    • A= low power B= high power
  18. Image Upload
    Spirocerca lupi eggs containing fully formed larva. 
  19. What is the smallest embryonated ova seen in dog species?
    Spirocerca lupi
  20. Image Upload
    Parasite of the _________ but can be found in _________.
    • Pearsonema plica
    • Urinary bladder; feces
  21. Image Upload
    Pearsonema plica eggs X400
  22. Image Upload
    Found in
    • Dioctophyma renale
    • Giant worm of dogs, foxes and occasionally man
    • Found in urinary sediment; may be found in feces contaminated with urine
  23. Image Upload
    Eggs of Dioctophyma renale
  24. Image Upload
    Found in
    • Eggs of Stephanurus dentatus
    • Kidney worm of swine
    • Eggs are found in urinary sediment and occasionally in feces.
  25. Image Upload
    Eggs of Stephanurus dentatus X400
  26. Image Upload
    • Eggs of Physaloptera praeputialis
    • Stomach worm of cats, dogs, foxes and wild felidae.
  27. Image Upload
    Eggs of Physaloptera praeputialis X400
  28. Image Upload
    • Physaloptera rara
    • Stomach worm that contains an embryo when passed in the feces
  29. Image Upload
    • Eggs of Habronema muscae
    • Gastric nematode of horses
  30. Image Upload
    Habronema muscae
  31. Image Upload
    Eggs of Draschia megastoma. Eggs are from exudate in a gastric abscess, which contains adult worms.
  32. Image Upload
    • Draschia megastoma - horse
    • Seen are larvae in the feces
  33. Image Upload
    Chronic gastritis in a horse with numerous ulcers associated with Trichostrongylus axei
  34. Image Upload
    Inflammation and catarrhal (pus) in the stomach caused by Trichostrongylus axei
  35. Image Upload
    • Gasterophilus intestinalis in the stomach
    • Gasterophilus nasalis in the duodenum
  36. Image Upload
    Submandibular edema "bottle jaw" in cow with parasitic gastritis
  37. Image Upload
    • Eggs from Haemonchus sp
    • Stomach worm of cattle, goats and sheep
  38. Image Upload
    • Eggs of Haemonchus contortus
    • "Common or twisted" stomach worm of cattle, sheep and goats
  39. Image Upload
    Haemonchus sp worms on the mucosal surface. Female worms resemble a barber pole.
  40. Image Upload
    • Ascarops strongylina
    • Stomach worm of swine
  41. Image Upload
    Number of species
    • Strongyles sp eggs
    • Forty species have been reported from the large intestines of horse, asses and mules in North America.
  42. Image Upload
    • 2 diff Strongyles sp. eggs
    • Strongylus vulgaris (left)
    • Strongylus edentatus (right)
  43. Image Upload
    Found in
    • Eggs of Oxyuris equi
    • Rectal worm, Nocturnal worm and pinworm
    • Found in the feces, but exam of anal scraping is a more accurate method of diagnosis.
  44. Image Upload
    • Oxyuris equi
    • Single opeculated
  45. Image Upload
    Also called
    • Nematodirus spathigier - largest egg
    • Also called thread necked nematode of cattle, sheep and goats
  46. Image Upload
    Eggs of Nematodirus spathiger
  47. Image Upload
    • Eggs of Oesophagostomum sp.
    • Nodular worm of swine
  48. Image Upload
    Eggs of Oesophagostomum sp.
  49. Image Upload
    • Eggs of Macracanthorhynchus hirudinaceus
    • Cestode
    • Thorny-headed worm of swine
  50. Image Upload
    • Eggs of Macracanthorhynchus hirudinaceus
    • Embryo is surrounded by 3 shells
  51. Image UploadImage Upload
    Eggs of Macracanthorhynchus hirudinaceus
  52. Image Upload
    • Dirofilaria immitis larvae (microfilaria) 
    • 1st stage of Heartworm infection in dogs, foxes, coyotes, wolves and cats
  53. Image Upload
    Dirofilaria immitis larvae in blood
  54. Image Upload
    Dirofilaria immitis. Larvae is straight because blood hemolyzed in 2% acetic acid.
  55. Lungworm of swine
    • Metastrongylus apri
    • Metastongylus salmi
    • Metastrongylus pudendodectus
    • Metastrongylus elongates
  56. Lungworm of horses
    Dictyocaulus arnfeldi
  57. Lungworm of sheep, goats, deer
    Dictyocaulus filaria
  58. Intestinal threadworm of cattle, sheep, swine, goats and rabbits
    Strongyloides papillosus
  59. Intestinal threadworm of dogs, foxes, cats and man
    Strongyloides stercoralis
  60. Intestinal threadworm of horses
    Strongyloides westeri
  61. Esophageal worm of dogs and foxes
    Spirocerca lupi
  62. Giant worm of dogs, foxes and occasionally man
    Dioctophyma renale
  63. Kidney worm of swine
    Stephanurus dentatus
  64. Stomach worm of cats, dogs, foxes and wild felidae
    Physaloptera praeputialis
  65. Gastric nematode of horses
    Habronema muscae
  66. 4 Stomach parasites of Ruminants
    • Haemonchus placei
    • Ostertagia ostertagi
    • Trichostrongylus axei
    • Haemonchus contortus
  67. "Common or twisted" stomach worm of cattle, sheep and goats
    Haemonchus contortus
  68. Stomach worm of swine
    • Ascarops strongylina
    • Hyostrongylus rubidus (red stomach worm)
    • Physocephalus sexalatus
  69. "Rectal worm" of horses
    Oxyuris equi
  70. Thread necked nematode of cattle, sheep, and goats
    Nematodirus spathiger
  71. Nodular worm of swine
    • Oesophagostomum dentatum
    • Oesophagastomum georgianum
    • Oesophagastomum brevicauderm

  72. Thorny-headed worm of swine
    Macracanthorhynchus hirudinaceus
  73. Image Upload
    Condition & location caused by what parasite
    Aneurysm of the cranial mesenteric artery from 4th stage larvae of Strongylus vulgaris
  74. Image Upload
    Condition and location of what parasite
    Hemorrhagic inflammation & necrosis of the cecum and ventral colon 2-3 weeks after infection with Strongylus vulgaris
  75. Image Upload
    Gastrophilus intestinalis on hairs of forelimb at the knee
  76. Image Upload
    Stage of parasite and route
    • 2nd stage of Gasterophilus intestinalis
    • Migration = hairs of the knee, then to the tongue, then to the stomach
  77. Image Upload
    Onchocerca cervicalis
  78. Image Upload
    Location and parasite
    Segments of ligamentum nuchae from lesions of Onchocerca cervicalis
  79. Image Upload
    Large lesions of Draschia megastoma in the stomach wall of a horse
  80. 2 parasites that cause tumors
    • Spirocerca lupi
    • Draschia megastoma
  81. Image Upload
    • Cutaneous habronemiasis
    • AKA summer sores - stomach worm
  82. Image Upload
    Trichostrongylus axei eggs
  83. Image Upload
    Thelazia lacrymalis (eyeworms) along the border of the nicitanation membrane.
  84. Image Upload
    Typical stance of piperazine toxicosis syndrome
  85. Image Upload
    • Helminth eggs - feces of cattle
    • Trichostrongylus axei
    • Trichuris ovis
    • Nematodirus spathiger
  86. Image Upload
    Calf with ostertagiasis with submandibular edema (bottle jaw/anasarca) caused by stomach worm that causes emaciation & diarrhea.
  87. Image Upload
    Marshallagia marshalli
Card Set:
Nematodes Part II
2014-06-07 22:18:09
Nematodes Parasitology Vet Tech

Nematodes Part II
Show Answers: