Adult Worms Live In Lungs

1.Adult worms live in lungs, encysted in pairs. 2.Wild animals (Leopards, wild cats, fishing cats ect.) may also harbor the adult worms. 3.Eggs passed out with sputum or faeces. 4.Miracidium hatches out in water 5.Specific snail host, in which sporocyst, redia and cercaria develop. 6.Cercaria encyst in gills and muscles of freshwater crabs and crayfish 7.Consumption of raw or undercooked crabs lead to the disease

1.Adult worms live in lungs, encysted in pairs. 2.Wild animals (Leopards, wild cats, fishing cats ect.) may also harbor the adult worms. 3.Eggs passed out with sputum or faeces. 4.Miracidium hatches out in water 5.Specific snail host, in which sporocyst, redia and cercaria develop.

6.Cercaria encyst in gills and muscles of freshwater crabs and crayfish 7.Consumption of raw or undercooked crabs lead to the disease

Spot 1 1.1 Identify the specimen 1.2 Give 2 reasons (for identification)

Spot 2 2.1

Identify to the species

2.2 How does this infection spread?

Spot 3 3.1

Identify to the specimen

Spot 4 4.1 Identify the specimen 4.2 What does it cause in man? 4.3 How does the man get infected?

Spot 5 5.1

Identify the specimen

5.2 What is the natural host of this parasite? Spot 6 6.1 Identify the specimen 6.2 Give one reason for identification

Spot 7 7.1 Identify the specimen 7.2 Give 2 reasons (for identification) 7.3 What is the condition called?

Spot 8 8.1

Identify the specimen

8.2

Give two reasons for identification

Answers Spot 1

1.1 Identify the specimen Taenia solium scolex

1.2 Give 2 reasons (for identification) 1. Prominent rostellum in scolex 2. Two rows of hooks in rostellum

Spot 2 2.1 Identify to the species Enterobius vermicularis egg 2.2 How does this infection spread? By ingesting eggs due to poor sanitary habits

Spot 3 3.1

Identify to the specimen Trichuris trichuira egg

Spot 4 4.1 Identify the specimen Taenia Cysticercus in muscle

4.2 What does it cause in man? Cysticercosis

4.3 How does the man get infected? By ingesting Taenia eggs

Spot 5 5.1 Identify the specimen Echinococcus granulosus adult worm 5.2 What is the natural host of this parasite? Dog Spot 6 6.1 Identify the specimen Hymenolepis nana egg 6.2 Give one reason for identification Two polar thickenings in egg

Spot 7 7.1 Identify the specimen Section of a hydatid cyst

7.2 Give 2 reasons (for identification) 1. Protoscoleces surrounded by a prominent brood capsule

2. Pericyst, ectocyst and endocyst can be identified

7.3 What is the condition called? Hydatidosis

Spot 8 8.1

Identify the specimen

Russell’s viper or Daboia russelli 8.2

Give two reasons for identification

1.

Triangular head and short stumpy body

2.

Three rows of elliptical markings on body