12 - Platyhelminths Flashcards Preview

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Flashcards in 12 - Platyhelminths Deck (17):
1

(Helminths)

1. platyhelminths = ?

2. nemathelminthes = ?

1. flatworms

2. roundworms

2

(Platyhelminthes)

1. tubellaria = ?

1. eddy worms

3

(Platyhelminthes)

1. flukes = ?

2. tapeworms = ?

1. trematodes

2. cestodes

4

(Platyhelminths)

1. bilaterally symetircally>

2. flattened how?

3. anterior end has what?

2. dorsoventrally

3. sensory and motor nerve elements

5

(Platyhelminths)

1. have a body cavity (coelem)?

2. 

1. no

6

(Platyhelminths)

1. Tegument = ?

2. gut is what?

undigested waste eliminated how?

3. respiration?

4.  

1. surface (absorbs a lot of stuff cause tapeworms have no gut)

2. blind sace (trematodes) or absent (cestodes)

highly branched

via mouth

3. through tegament

7

(Platyhelminths)

(nervous system)

1. is what?

(reproduction)

1. are what?

2. can do what?

1. bilateral - many sensory elements

1. hermaphrodites

2. self and cross fertilize

8

don't learn these

9

10

sounds like we will be going over this again

feck...

11

(Trematodes or Flukes)

12

what kind of sucker most common?

distomes

13

14

(Trematode Physiology)

(reproduction)

1. most adult flukes are hermaphroditic - except what?

2. sexual reproduction occurs where?

3. do they require intermediate hosts?

4. what occurs in intermediate host?

1. schistosomes

2. definitive host (vertebrae)

3. yes - one or more (intervertebtrates - 1st snail or slug)

4. asexual reporduction

15

16

(Flukes - life history)

17