intestinal tape worms - Hymenolepsis spp Flashcards

1
Q

H. nana AKA

A

Dwarf tape worm

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2
Q

Scolex

A

1 circle 30 hooks

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3
Q

Hymenolepsis is apolytic or anapolytic?

A

Anapolytic

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4
Q

Intermediate host

A

beetle

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5
Q

infected beetle is consumed by

A

a mammal host

oncosphere hatches in duodenum and imbeds in the villi

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6
Q

In the villi:

A

oncosphere develops into cercocystis

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7
Q

____ emerges from ______ to the _____

A

cercocystis
villi
lumen where it becomes an adult

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8
Q

Infective stage of nana:

A

Eggs

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9
Q

in nana ______ is _____

A

intermediate host, optional

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10
Q

______ can aggravate infection

A

auto infection

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11
Q

I heavy infections

A

Hymenolepiasis casues enteritis

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12
Q

Dx

A

eggs in feces

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13
Q

Diminuta vs Nana

A

D: lacks hooks, larger, 2nd int host required
N: with hooks, smaller, 2nd int host optional, autoinfection

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14
Q

Diminuta intermediate host

A

arthropods

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15
Q

Diminuta cause for infection

A

stored-grain beetle

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16
Q

Diminuta causes

A

diarrhea