Nematodes-general

Question 1

What modifications do male nematodes have

Answer 1

copulatory bursa

spicules = penis

Question 2

What is the infective stage of nematodes

Answer 2

L3

Question 3

What are some characteristics of nematode life cycle

Answer 3

3 types of eggs
5 molts (called L stages)
L5= immature adult
larvae in IH
Adults in DH

Question 4

Oviparious egg type

Answer 4

single stage or morula

Question 5

Ovoviviparous egg type

Answer 5

Single L1 larvae inside

Question 6

Larviparous egg type

Answer 6

eggs retained in uterus

gives birth to live larvae

Question 7

How do you diagnose nematode

Answer 7

Fecal float

Question 8

What is a modification that nematodes can have on just the tip

Answer 8

Alae

Question 9

Some characteristics of Trichostrongyloidea

Answer 9

Direct life cycle

Males have copulatory bursa

Question 10

Characteristics of Strongyloidea

Answer 10

large mouth with teeth
males have copulatory bursa
Direct life cycle

Question 11

Characteristics of Oxyuroidea

Answer 11

Bulbed esophagus
Pin worm
Direct life cycle
Pin shaped head
Scotch tape test

Question 12

Characteristics of Ascaroidea

Answer 12

large
Direct life cycle
Have alae
3 lips

Question 13

Characteristics of Trichuroidea

Answer 13

Whipworm
Short fat posterior
Direct life cycle
Beaded esophagus

Question 14

Filarioidea

Answer 14

Heartworm
male have corkscrew tail
indirect life cycle

Question 15

Acanthocephalans

Answer 15

Indirect life cycle

not covered extensively