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411- HELMINTHOLOGY > FASIOLIDAE > Flashcards

FASIOLIDAE Flashcards

1
Q

Large, “leaf like flukes”

A

Fasciolidae

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2
Q

Characteristics of fasciolidae:

A
  • large, leaf like flukes
    -herbivores
    -Spiny cuticle and sucker (distome)
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3
Q

Parasitic sites fasciolidae:

A

Liver
Bile ducts
Small Intestines

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4
Q

Also known as “LIVER FLUKES”

A

Fasciola

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5
Q

Most important flukes of ruminants
Genus of class Trematoda

A

Fasciola or “liver flukes”

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6
Q

Cause condition known as

A

“Fasciolosis”, “liver rot”, “liver fluke dss”

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7
Q

Fasciola hepatica I.H ?

A

Lymnaea truncatula (temperate)

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8
Q

Predilection sites of F. Hepatica

A

adults in the - (Biles ducts )
Immature flukes- ( ‘liver’)
Abberant flukes - (Lungs”

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9
Q

Fasciola life cycle:

A

Host
Egg
Miracidium
Sporocyts
Redia
Cercaria
Meta cercaria

Discussion: F. hepatica
- laid egg enterr the duodenum
-egg development under optimu environment
-miracidium cast and become sporocyst
-each sporocyts dvelops and give rise to rediaa
-migrates to the predilection site gall bladder.

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10
Q

less common
Associated by Black disease
Caused by

A

Clostridium novyi

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11
Q

Most common chronic diseases of fasciola

A

“Pipe-stem liver”
“Hazel-nut-sized cysts” in lungs

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12
Q

Chronic diseases

A

“Bottle jaw”

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13
Q

Diagnosis

A

Fecal exam
Skin test
ELISA

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14
Q

Drug of choice
chemical treatment using molluscicids of medical plant extract —

A

Triclabendazole
- tobacco extract

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15
Q

Also knows as “large American liver flukes”

A

Fascioloides

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16
Q

Characteristics of fascioloides

A

Large
Oval, thick flesh-colored fluke
No distinct anterior cone

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17
Q

Final host: “white tailed deer” are normal definitive host although other ruminants may be affected

A

Fascioloides magna

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18
Q

I.H fascioloides magna

A

Lymnaea sp. , fossaria sp. , Siagnocola sp.

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19
Q

Site of F. Magna

A

Liver tissue and bile ducts

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20
Q

A striking characteristic of F.magna infection is accumulation of

A

“Black iron porphyrin”

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21
Q

I.H of Fasiolopsis buski
SITE

A

Planorbis sp.
Segmentina sp.

Small intestine

22
Q

Paramphistomes also known

A

“Conical flukes”
“Stomach flukes”

23
Q

Characteristics of P

A
  • Pear-shaped
  • Red or pink color
    -sucker
24
Q

Family with ventral pouch, body not divided into 2

A

GASTROTHYLIDAE

25
Q

FAMILY
without ventral pouch, not divided into 2 parts

A

Paramphistomidae

26
Q

FAMILY
(Without ventral pouch but divided into 2 parts

A

GASTRODISCIDAE

27
Q

IH of GASTRODISCIDAE

A

planorbis sp.
Bulinus sp.

28
Q

Knows as “blood flukes”

A

SCHISTOSOMATIDAE

29
Q

Characteristics

A

Cylindrical
Unisexual
Female slender and longer than male
Male broader

30
Q

Female is carried by the male during copulation by means of ventral grooves knows

A

“Gynaecophoric canal”

31
Q

Finals host of schistosoma japonicum

A

Man and domestics animals

32
Q

I.H of S.japonicum (Phil)

A

Oncomelania hupensis quadrasii

33
Q

I.H in japan

A

O. NosophorA

34
Q

I.H in china

A

“Oncomelania hupensis”

35
Q

Site of S. Japonicum

A

Portal and mesenteric veins

36
Q

3 immunity

A

A. antigenic mimircy
B. Immunosuppression
C. Isotypic selection of antibodies

37
Q

Young flukes

A

Schistosomulaa

38
Q

Mode of transmission:

A

Skin penetration
Ingestion of contaminated water
Prenatal infections

39
Q

Pathogenesis and disease known of schistosomatidae

A

Schistosomosis
Snail fever
Bilharziasis
Katayama disease

40
Q

Disease has three stages:

A
  1. Development period
  2. Period of active oviposition and extrusion
  3. Period of proliferation and repair
41
Q

Prediction site S. Bovis
And host cattle, sheep ,goat

A

Portal, mesenteric veins

42
Q

Prediction site of mattei
Host:

A

Intestinal and hepatic and bladder
Host: dom and wild ruminants

43
Q

Gastrodiscus
small and large intestine of horse and pig

A

Gastrodiscus aegytiacus

43
Q

Homologaster
rumen nd cecum of cattle and buffaoes

A

Homologaster paloniae

44
Q

GASTRIDISCIDAE
Host

A

ruminants , pig and horses

45
Q

GASTRIDISCIDAE
site:

A

rumen reticulum

46
Q

life cycle of schistosomosis:

A

-eggs laid in the capillaries
-eggs passed out in feces carried away from blood stream
-freed miracidium no redia
-furcocercous
skin pentration assisted in cephalic gland secretion.

46
Q

Pathogenesis
in bile ducts and gall bladder causes superficial hemorrhage but no pathogernec effect

A

Giganticocytes

47
Q

schistosomes drug of choice:

A

Praziquantel

47
Q

prevention:

A
  • avoid contact with contaminated water
    -proper disposal of human excreta
    dissemination

411- HELMINTHOLOGY (16 decks)

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