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Describe Nematode Morphology
Unsegmented/elongated
Circular in cross-section
Vast size variation
Have 3 shape variation: Spherical, Whip-like, Terminal enlargements
Describe Nematode Internal Structures
Dioecious: Separate sexes
Mouth variations: Papillae and "Teeth"
What are the 4 egg types of nematodes?
Ascarid
Strongyle
Spiruroid
Trichuroid
Describe Ascarids Eggs
Round/oval
Thick outer shell (rough /smooth)
Contents: Single cell stage

Describe Strongyle Eggs
Oval/elliptical
Thin smooth shell
Contents: Morula stage/ multiple cells stuck together

Describe Spiruroid Eggs
Oval/rectangular
Thin smooth shell
Contents: 1st stage larva

Describe Trichuroid Eggs
Elliptical with polar plugs
Thick outer shell (smooth)
Contents: Single cell stage


What type of nematode egg is this?
Ascarid

What type of nematode egg is this?
Strongyle

What type of nematode egg is this?
Spiruroid

What type of nematode egg is this?
Trichuroid