Parasitology Cestodes

Question 1

Give the scientific name:
Dwarf Tapeworm

Answer 1

Hymenolepis nana

Question 2

Give the scientific name:
Rat Tapeworm

Answer 2

Hymenolepis diminuta

Question 3

Give the scientific name:
Beef Tapeworm

Answer 3

Taenia saginata

Question 4

Give the scientific name:
Pork Tapeworm

Answer 4

Taenia solium

Question 5

Give the scientific name:
Hydatid Tapeworm
or
Minute Tapeworm
or
Dog Tapeworm

Answer 5

Echinococcus granulosus

Question 6

Give the scientific name:
Broad Fish Tapeworm

Answer 6

Diphyllobothrium latum

Question 7

Give the common name:
Hymenolepis nana

Answer 7

Dwarf Tapeworm

Question 8

Give the common name:
Hymenolepis diminuta

Answer 8

Rat Tapeworm

Question 9

Give the common name:
Taenia saginata

Answer 9

Beef Tapeworm

Question 10

Give the common name:
Taenia solium

Answer 10

Pork Tapeworm

Question 11

Give the common name:
Echinococcus granulosus (3)

Answer 11

-Dog Tapeworm
-Hydatid Tapeworm
-Minute Tapeworm

Question 12

Give the common name:
Diphyllobothrium latum

Answer 12

Broad Fish Tapeworm

Question 13

Give the common name:
Cestodes

Answer 13

Tapeworms

Question 14

Give the scientific name:
Tapeworms

Answer 14

Cestodes

Question 15

What are the segments of cestodes called?

Answer 15

Proglottids

Question 16

TRUE or FALSE:
Cestodes have no body cavity

Answer 16

TRUE

Question 17

What is the name for a cestodes head?

Answer 17

Scolex

Question 18

How many suckers does a cestode have?

Answer 18

4

Question 19

TRUE or FALSE:
All cestodes have “armed” rostellum

Answer 19

FALSE - there are unarmed and armed rostellum on cestodes

Question 20

What does having a cestode having an armed rostellum mean?

Answer 20

They have hooks

Question 21

Cestodes are ___________ meaning the gravid proglottids contain both male and female reproductive organs

Answer 21

Hermaphroditic

Question 22

This stage of cestode development is resistant and transmissible

Answer 22

Ova

Question 23

TRUE or FALSE:
Cysticercoid larva are typically found in vertebrate intermediate hosts

Answer 23

FALSE - invertebrate intermediate hosts

Question 24

TRUE or FALSE:
Cysticercus larva are typically found in vertebrate intermediate hosts

Answer 24

TRUE

Question 25

Stages of Cestode Development:
-Cyst-like structure closing the scolex
-Contains little to no fluid

Answer 25

Cysticercoid

Question 26

Stages of Cestode Development
-bladder worm
-cyst-like structure enclosing the scolex
-fluid filled

Answer 26

Cysticercus

Question 27

Which cestode is the most prevalent tapeworm to humans in the United States?

Answer 27

Hymenolepis nana

Question 28

What’s the easiest way to distinguish Hymenolepis nana from Hymenolepis diminuta?

Answer 28

Hymenolepis nana ova have polar filaments and the rostellum is armed.

Question 29

Which cestode is this:

Answer 29

Hymenolepis nana

Question 30

Which cestode is this:

Answer 30

Hymenolepis diminuta