Nematodes

Front 1

Who is a nematode?

Back 1

Round, whips, and hooks

Front 2

Normal larval migration places

Back 2

1. Mucosal

2. Tracheal

3. Somatic

Front 3

Migran locations

Back 3

1. Cutaneous

2. Ocular

3. Visceral

Front 4

Pre parasitic egg life stages

Back 4

L1-->L3

Front 5

Parasitic in definitive host life stages

Back 5

L3-->L5

Front 6

Ascarid location of adult

Back 6

Small intestine of host

Front 7

What kind of specificity do ascarids have?

Back 7

High specificity

Front 8

Paratenic host

Back 8

A host in which the parasite may grow and/or multiply, but the development is not required for the life cycle (alternate host)

Front 9

What stage of life is the infective stage?

Back 9

L3

Front 10

Toxocara canis host

Back 10

Canids (puppies & dams)

Front 11

Toxocara adult size and life span

Back 11

20cm and 4 months

Front 12

Toxocara ova size

Back 12

>70micrometers

Front 13

Description of Toxocara ova

Back 13

Round w/ pitted shell dark abd relatively large

Front 14

Prepatent period

Back 14

Time from ingestion to adult

Front 15

Toxocara canis ova is ingested through?

Back 15

Tracheal migration, somatic migration, and paratenic host(rodent)

Front 16

Who does tracheal migration of toxocara canis affect?

Back 16

Pups<3 months old

Front 17

Toxocara canis somatic migration happens in who?

Back 17

>3 months old (adult dogs)

Front 18

Toxocara canis can be passed mother to puppies via ?

Back 18

Transmammary and transplacental

Front 19

How do the dormant toxocara canis larva get into the puppies transplacentally?

Back 19

Migrate from placenta to the fetal liver (~day 42)

Front 20

How do the toxocara canis larva get into the puppies transmammary?

Back 20

Larva shed in milk by day 5

Front 21

Puppy toxocara canis pathology

Back 21

ADR, pot belly, dull hair coat, small

Front 22

Puppy toxocara canis heavy infection pathology

Back 22

Diarrhea, dehydration, obstruction, serve versions of regular pathology for toxocara canis

Front 23

Zoonosis possibilities of toxocara canis

Back 23

By ingestion, inhalation, visceral and ocular

larval migrans

Front 24

Toxocara cati

Back 24

Cat round work

Front 25

Toxocara canis

Back 25

Dog round worm

Front 26

Toxocara cati host

Back 26

Felids and canids

Front 27

Toxocara cati adult size and life span

Back 27

10cm 4 months

Front 28

Toxocara cati ova description

Back 28

Round with pitted shell dark and a little smaller than toxocara canis

Front 29

Prepatent period of Toxocara cati

Back 29

8 weeks

Front 30

Prepatent period of toxocara canis

Back 30

3-5 weeks

Front 31

Toxocara cati when do they use tracheal migration

Back 31

Throughout lifespan of host

Front 32

Toxocara cati somatic migration use

Back 32

Used very little

Front 33

Toxocara cati mucosal migration use

Back 33

Used by mature non pregnant adults

Front 34

What is the paratenic host to toxocara cati and canis?

Back 34

Rodents

Front 35

does transplacental infection occur in toxocara cati?

Back 35

Does not occur in cats

Front 36

does transmammary infection occur in toxocara cati?

Back 36

Yes very importiant route in kittens

Front 37

Toxocara cati pathology

Back 37

Similar to canis, pot belly, dull hair coat, small

Front 38

Toxascaris leonina host

Back 38

Dogs and cats

Front 39

Toxascaris leonina ova description

Back 39

Lighter in color, less pitting on shell, smaller than toxocara

Front 40

Toxascaris leonina Prepatent period

Back 40

8-10 weeks

Front 41

Does transplacental infection occur in Toxascaris leonina ?

Back 41

Does not occur in Toxascaris leonina

Front 42

Does transmammary infection occur in Toxascaris leonina?

Back 42

Does not happen in Toxascaris leonina

Front 43

Toxascaris leonina Pathology

Back 43

No subclinical signs

Front 44

Toxascaris leonina Zoonotic possibility?

Back 44

Not zoonotic

Front 45

Ascaris suum host

Back 45

Swine

Front 46

Ascaris suum adult size

Back 46

30cm (thicker)

Front 47

Ascaris suum Ova description

Back 47

More oval, yellow to brown, smaller with a knobby shell

Front 48

How is Ascaris suum transferred to young?

Back 48

Transmitted when ova stick to skin of the mammary gland (sow to piglet)

Front 49

Ascaris suum Environmental aspect?

Back 49

Ova infective in soil for several years

Front 50

Milk spots

Back 50

Fibrous legions seen in liver as a result of migration

Front 51

Thumps

Back 51

Audible exhalations due to lung damage from migration

Front 52

Parascaris equorum host

Back 52

Horse

Front 53

Parascaris equorum occurs in horses of what age?

Back 53

Usually only in horses under 6 months

Front 54

Does Parascaris equorum have the ability to infect through transplancental or transmammary transmission?

Back 54

No, not in horses

Front 55

How do foals get Parascaris equorum?

Back 55

Transmitted when ova stick to skin of mammary gland, buckets, stalls ect (foals lick these surfaces)

Front 56

Baylisascaris procyonis definitive host

Back 56

Raccoon

Front 57

Baylisascaris procyonis Alternative host

Back 57

Human, dogs, woodchucks, rabbits, birds, ect

Front 58

Baylisascaris procyonis Pathology

Back 58

Goes to the nervous system in alternative hosts (very serious, fatal)

Front 59

How to kill Baylisascaris procyonis eggs?

Back 59

Only way to kill eggs is by burning

Front 60

Where is Baylisascaris procyonis found ?

Back 60

Found everywhere raccoons are