cestodes

Question 1

tapeworms are part of

Answer 1

platyhelminths

Question 2

tapeworm- general

Answer 2

hermaphroditic

-absorb nutrients thru their body- have no mouth or digestive

-big as 20 meters
-1 per person

Question 3

anterior end of tapeworm called

Answer 3

scolex

-4 attachment suckets
-may also have hooks

Question 4

entire body of tapeworm called

Answer 4

strobila

Question 5

each segment of tapeworm called

Answer 5

proglottid

Question 6

proglottid has what parts

Answer 6

male and female

Question 7

worms grow by

Answer 7

adding proglottid

Question 8

pregnant (gravid) may contain

Answer 8

fertilized eggs

Question 9

embryo within egg may have

Answer 9

6 tiny hooklets that can hook to host intestinal wall

Question 10

known as beef tapeworm

Answer 10

taenia saginata

Question 11

how to get Taenia saginata

Answer 11

cows may eat eggs or shed proglottids found in soil
-we eat cows

Question 12

can not differentiate Taenia saginata from egg need to look at

Answer 12

worm and proglottids

Question 13

features of worm specific to Taenia saginata

Answer 13

head of worm “unarmed”- no hooks at head

15-30 branches/proglottid

Question 14

when humans ingest raw or undercooked meat the

Answer 14

scholex will attach to wall of small intestine and mature into adult tapeworm in 10 weeks

-adding more proglottids

Question 15

diagnostic stage of Taenia saginata

Answer 15

egg, scolex, or proglottids in stool

Question 16

known as pig worm

Answer 16

taenia solium

Question 17

how to differentiate solium

Answer 17

look at worm and proglottids

Question 18

characteristics of worm for taenia solium

Answer 18

head is armed- have hooklets

7-12 uterine branches

Question 19

diagnostic stage for solium

Answer 19

egg, scolex, or proglottids in the stool

Question 20

known as broad fish or fish tapeworm

Answer 20

Diphyllobothrium latum

Question 21

where is Diphyllobothrium latum found

Answer 21

temperate regions of world where freshwater fish are natural diet

-scandinavian countries

also sushi

-great lakes !!

Question 22

for Diphyllobothrium latum what helps identify it

Answer 22

egg

-operculated; cross between paragonimus and clonorchis

Question 23

to prevent Diphyllobothrium latum

Answer 23

freeze fish for 48 hours or properly cook for it to be killed

Question 24

symptoms of Diphyllobothrium latum

Answer 24

vague abdominal pain, weight loss, weakness

Question 25

what do people with Diphyllobothrium latum develop

Answer 25

severe macrocytic type of anemia

use 100% of person’s vitamin B12