Lab 5-Acanthocephala Flashcards
1
Q
Common name
A
thorny-headed worm
2
Q
2 body regions:
A
- posterior
- anterior
3
Q
Where is the retractable proboscis?
A
anterior
4
Q
What is on the posterior?
A
trunk/soma
5
Q
What gripping structure is on the proboscis?
A
hooks
6
Q
Receptacle
A
proboscis sheath
7
Q
Does it have tegument?
A
yes
8
Q
Lacunae
A
canal within tegument
9
Q
Do Acanthocephalans have digestive tract?
A
No
10
Q
Saefftigen’s pouch
A
muscular sac used to manipulate bursa of males
11
Q
Separate sexes?
A
yes
12
Q
What hatches out of eggs?
A
acanthor
13
Q
Life stages starting from egg (x4)
A
egg –> acanthor –> acanthella –> cystacanth
14
Q
What is the earliest stage that Acanthocephalans are infective to hosts?
A
cystacanth
15
Q
Where do adults live?
A
intestines of vertebrates
