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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
FAMILY without ventral pouch, not divided into 2 parts
Paramphistomidae
26
FAMILY (Without ventral pouch but divided into 2 parts
GASTRODISCIDAE
27
IH of GASTRODISCIDAE
planorbis sp. Bulinus sp.
28
Knows as “blood flukes”
SCHISTOSOMATIDAE
29
Characteristics
Cylindrical Unisexual Female slender and longer than male Male broader
30
Female is carried by the male during copulation by means of ventral grooves knows
“Gynaecophoric canal”
31
Finals host of schistosoma japonicum
Man and domestics animals
32
I.H of S.japonicum (Phil)
Oncomelania hupensis quadrasii
33
I.H in japan
O. NosophorA
34
I.H in china
“Oncomelania hupensis”
35
Site of S. Japonicum
Portal and mesenteric veins
36
3 immunity
A. antigenic mimircy B. Immunosuppression C. Isotypic selection of antibodies
37
Young flukes
Schistosomulaa
38
Mode of transmission:
Skin penetration Ingestion of contaminated water Prenatal infections
39
Pathogenesis and disease known of schistosomatidae
Schistosomosis Snail fever Bilharziasis Katayama disease
40
Disease has three stages:
1. Development period 2. Period of active oviposition and extrusion 3. Period of proliferation and repair
41
Prediction site S. Bovis And host cattle, sheep ,goat
Portal, mesenteric veins
42
Prediction site of mattei Host:
Intestinal and hepatic and bladder Host: dom and wild ruminants
43
Gastrodiscus small and large intestine of horse and pig
Gastrodiscus aegytiacus
43
Homologaster rumen nd cecum of cattle and buffaoes
Homologaster paloniae
44
GASTRIDISCIDAE Host
ruminants , pig and horses
45
GASTRIDISCIDAE site:
rumen reticulum
46
life cycle of schistosomosis:
-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
Pathogenesis in bile ducts and gall bladder causes superficial hemorrhage but no pathogernec effect
Giganticocytes
47
schistosomes drug of choice:
Praziquantel
47
prevention:
- avoid contact with contaminated water -proper disposal of human excreta dissemination

411- HELMINTHOLOGY (16 decks)

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