Cestodes

Question 1

Are cestodes parasitic?

Answer 1

Yes, all are parasitic.

Question 2

T/F: Cestodes have digestive, circulatory, resp, and skeletal systems?

Answer 2

False

Question 3

T/F: They have muscular and nervous system?

Answer 3

True

Question 4

What type of sex?

Answer 4

hermaphroditic

Question 5

Name different body parts

Answer 5

scolex, suckers, immature proglottids, mature proglottids, + gravid proglottids.

Question 6

Name the two orders in the Class Cestoda

Answer 6

Pseudophyllidea (pseudotapeworms) & cyclophyllidea (true tapeworms).

Question 7

Name the parts in the cyclophyllidean proglottid

Answer 7

reproductive organs, lateral genital pore, NO uterine pore.

Question 8

T/F: cyclophyllideans have a hexacanth embryo

Answer 8

True

Question 9

Define cysticercoid

Answer 9

single scolex NOT invaginated. Usually invertebrate IH.

Question 10

Define cysticercus (measly beef)

Answer 10

single invaginated scolex. Usually vertebrate IH.

Question 11

Define coenurus

Answer 11

many invaginated scolices. Vertebrate IH.

Question 12

Define hydatid cyst

Answer 12

brood capsules with 100-1000s protoscolices.
Unilateral - single large cyst
Multilocular - many cysts

Question 13

Name the parts of the pseudophyllideans proglottid.

Answer 13

1st set reproductive organs. Genital pore and uterine pore.

Question 14

What order of tapeworms have operculated ova?

Answer 14

pseudophyllideans

Question 15

Name the two types of larval stages in pseudo tapeworms

Answer 15

procercoid and plerocercoid

Question 16

What fecal test is best to ID cestode ova?

Answer 16

fecal floatation