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PARASITOLOGY > Intestinal Nematodes > Flashcards

Intestinal Nematodes Flashcards

1
Q

Syncytium of cells and fibers

A

Hypodermis

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2
Q

Longitudinal cords

A

Somatic muscles

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3
Q

For secretion of cuticle

A

Hypodermis

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4
Q

Not lined with mesothelium

A

Pseudocoele

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5
Q

Rectum in males

A

Cloaca

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6
Q

Nerve center

A

Circumesophageal ring

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7
Q

Inflations of cuticle for tactile receptors

A

Papillae

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8
Q

Laterally placed minute receptors in the cephalic/cervical area of all nematodes

A

Amphids

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9
Q

Roundworms with receptors located posteriorly are called:

A

Phasmids

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10
Q

Modified anus called cloaca

A

Ejaculatory duct

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11
Q

Coiled

A

T. trichura

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12
Q

Curved tail

A

A. lumbricoides; E. vermicularis

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13
Q

Copulatory bursa

A

Hookworm

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14
Q

To keep vulva open

A

Spicules

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15
Q

Single reproductive system

A

Trichinella

Whipworm

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16
Q

Double reproductive system

A

Ascaris
Enterobius
Hookworms

17
Q

Few eggs

A

Strongyloides

18
Q

> 200,000 eggs/female/day

A

Ascaris

19
Q

Mating is once

A

enterobius

20
Q

Mating is continuous

A

Syngamus

21
Q

Mating is signaled by _________ released by the females, with structural modifications in the vulva.

A

Sex pheromones

22
Q

Sputum

A

Syngamus

23
Q

Urine

A

Dioctophyma

24
Q

Blood

A

Microfilaria

25
Q

Tissue

A

Onchocercans

26
Q

Almost fully embryonated

A

Enterobius

27
Q

Require embryonation in soil

A

Ascaris, hookworm

28
Q

Ascaris is prevalent among young children ages ________.

A

5-15 year old

29
Q

Polymyarian types of somatic muscle arrangement

A

Ascaris adult worms

30
Q

To firmly grasp the female during copulation

A

Ventrally curved posterior end

31
Q

To keep the vulva of the female open during copulation

A

Tail with 2 spicules

32
Q

Smooth finely striated cuticle

A

Ascaris adult worm

33
Q

Conical anterior/posterior extremtities

A

Ascaris adult worm

34
Q

Infective stage of Ascaris lumbricoides

A

Fully embryonated egg

PARASITOLOGY (3 decks)

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