Parasitology (Cestodes)

Question 1

General characteristics:

Exclusively hermaphroditic

With Flat segmented ribbon like bodies

Can live up to 25 years

Adults live in small intestine

Larva is found in tissues

Heteroxenous

Answer 1

Cestodes

Question 2

D. latum and Taenia spp. can live up to

Answer 2

25 years

Question 3

D. caninum and H. diminuta can live

Answer 3

less than 1 year

Question 4

Parts of tapeworm body

Answer 4

Scolex
Neck
Strobila

Question 5

head of tapeworm/hold fast organ for attachment
Rostellum

Answer 5

Scolex

Question 6

region of growth/ budding zone/ consists of germinative tissues

Answer 6

Neck

Question 7

entire chain of proglottid (segments), immature, mature, and gravid/ripe (part that contains mature eggs)

Answer 7

Strobila

Question 8

Pseudophyllidea

Answer 8

D. latum

Question 9

Scolex is spatulate/spoon shaped/ almond shaped

Answer 9

D. latum

Question 10

No. of host for D. latum

Answer 10

3 hosts

Question 11

Cyclophyllidea species

Answer 11

T. solium
T. saginata
H. nana
diminuta
D. caninum
E. granulosus

Question 12

Eggs of D. latum appears

Answer 12

Opeculated

Question 13

Eggs of T. solium, T. saginata, H. nana
diminuta, D. caninum, E. granulosus

Answer 13

Non-operculated

Question 14

No. of host for T. solium, T. saginata, H. diminuta, D. caninum, E. granulosus

Answer 14

2 hosts

Question 15

H. nana no. of host

Answer 15

1 host

Question 16

Scolex is globular usually with hooks

Answer 16

T. solium
H. nana
D. caninum
E. granulosus

Question 17

Globular scolex without hooks:

Answer 17

T. saginata
H. diminuta

Question 18

Larval stage of cestodes are usually found in

Answer 18

intermediate host

Question 19

Man is an accidental host in _____ (cestode) that causes tissue infection

Answer 19

E. granulosus

Question 20

Can live many years due to autoinfection (homoxenous)

Answer 20

H. nana