Introduction to Vet Parasitology (Book)

Question 1

briefly visit their host to obtain nourishment but not dependent on them for either nourishment or shelter

Answer 1

optional occasional parasites

Question 2

do not permanently live upon their host but are dependent upon them for nourishment

Answer 2

obligate occasional parasites

Question 3

parasitism is limited to a definite stage or stages in their life cycle during which time, parasitism is obligate or continuous

Answer 3

determinate transitory parasites

Question 4

parasitism extends from the time of hatching of the eggs to the times eggs are produced by the adult

Answer 4

permanent parasites

Question 5

cannot pass spontaneously from one host to the other

Answer 5

fixed parasites

Question 6

mosquitoes and sandflies are what type of parasites

Answer 6

optional occasional parasites

Question 7

obligate occasional parasites

Answer 7

fleas and ticks

Question 8

Give examples of determinate transitory parasites

Answer 8

botflies, warble flies

Question 9

Examples of permanent parasites

Answer 9

lice and mange mites

Question 10

insects which only the immature stages are parasitic

Answer 10

protelean parasites/parasitoids

Question 11

require only one host to complete their life cycle

Answer 11

monoxenous parasites

Question 12

Ascaridia galli is a monoxenous parasite of?

Answer 12

Chicken

Question 13

Trichuris vulpis is a monoxenous parasite of?

Answer 13

Dogs

Question 14

Final host that harbor the infection but show no untoward signs of infection

Answer 14

Reservoir host

Question 15

Unnatural host in which parasites are accidentally lodged and transmission is through ingestion of infected paratenic host

Answer 15

Paratenic host

Question 16

Host in which parasite eggs, oocyst or adults are accidentally lodged and transmitted mechanically to another host

Answer 16

Transport host

Question 17

Parasites remain dormant or inhibited form for sometime in a natural host

Answer 17

Hypobiosis or histotropic phase of development

Question 18

The period from the time of infection to the time eggs or larva are demonstrated in the feces

Answer 18

Prepatent period

Question 19

From the time eggs are demonstrated in the feces to the time eggs disappear or period of appearance to disappearance

Answer 19

Patent period

Question 20

Refers to the presence of parasite larvae or parasitic protozoa in the blood

Answer 20

Parasitemia

Question 21

Those that are transferable from animal to man and vice versa or parasites affecting humans and animals

Answer 21

Parasitic zoonoses

Question 22

Parasite that is highly specific for animals

Answer 22

Zooparasite

Question 23

Parasite that is highly specific for man only

Answer 23

Anthropoparasite

Question 24

These are parasites that are equally specific for man and animals

Answer 24

Anthropozooparasite

Question 25

Man is essential for the life cycle of the parasite

Answer 25

Enzoonoses

Question 26

It is unstable and unchangeable group and man is just accidentally involved

Answer 26

Parazoonoses

Question 27

This transmission is when no change in form or development occurs in the arthropod body

Answer 27

Mechanical transmission

Question 28

This transmission is when there is a change in form or development of the parasite or organism in the body of the arthropods

Answer 28

Biological transmission

Question 29

Give the three types of biological transmission

Answer 29

1. Cyclopropagative transmission 2. Cyclodevelopmental transmission 3. Propagative transmission

Question 30

Describe cyclopropagative transmission

Answer 30

Organism undergo cyclical changes or change in form as well as in number

Question 31

What is cyclo-developmental transmission

Answer 31

An organism undergo cyclic development changing form and size but there is no change in number in the body of the arthropod

Question 32

This biological transmission is when the organisms undergo multiplication in the arthropod but no cyclical development or change in form or size

Answer 32

Propagative transmission

Question 33

It occurs when the infection is through the next generation

Answer 33

Transovarian transmission or hereditary transmission

Question 34

Common case of transovarian transmission

Answer 34

Babesia species in ticks

Question 35

It is the transport of small parasites such as lice and mites by bigger parasites such as flies and mosquitoes

Answer 35

Phoresy or phoresis

Question 36

In cases of phoresis these eggs are deposited in the abdomen of mosquito so that it will hatch deposited or transferred in another host

Answer 36

Dermatobia hominis eggs

Question 37

Give the factors that influence the degree of harm done by various parasites

Answer 37

Number of parasites present Location of the parasites Nature of their food Movement of parasites Age of the host Virulence of parasites

Question 38

It is the presence of natural antibodies normally produced against bacteria and viruses

Answer 38

Natural immunity

Question 39

Products of antibodies due to infect on or exposure or pre-immunition

Answer 39

Acquired immunity

Question 40

Acquired resistance due to increase development of acquired immunity

Answer 40

Age resistance

Question 41

True or false: Older birds are more resistant than younger birds and this is what kind of immunity

Answer 41

True. True age immunity

Question 42

Give some factors that influence the resistance to parasites

Answer 42

Nutrition Age of the host Vitamins General condition of the host