Lecture 10-Host Finding Flashcards

1
Q

2 methods of host finding

A

active and passive

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2
Q

Active host finding promotes what type of parasite?

A

host-specialist

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3
Q

passive host finding promotes what type of parasite?

A

host-generalist

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4
Q

Autoinfection

A

parasite hatches before leaving host and re-infects

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5
Q

Retroinfection

A

Parasite infective stages leave host but immediately re-enter

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6
Q

Example of parasite that uses retroinfection

A

enterobius

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7
Q

3 ways that parasites can transmit to offspring

A
  • transplacental
  • transmammary
  • transovarian
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8
Q

example of parasite that can transmit transplacentally

A

toxoplasma

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9
Q

example of parasite that uses external host chemicals to find host

A

entobdella

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10
Q

example of parasite that uses internal host hormones to synchronize life cycle

A

spilopsyllus

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11
Q

example of parasite that uses paratenic host (worm)

A

heterakis

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12
Q

example of parasite that alter snail host’s conspicuousness

A

leucochloridium

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13
Q

example of parasite that alter deer host’s conspicuousness

A

parelaphostrongylus tenuis

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14
Q

3 theories of fatal attraction

A
  • tropism to specific areas of brain
  • disruption of dopamine signalling in brain
  • hormonal and epigenetic changes
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