Lecture 1- Overview

Question 1

Phylum: Nemathelminthes

Answer 1

Nematodes
Roundwroms
Round bodies, cylindrical (1mm)
Pseudo-coelom= body cavity

Question 2

Phylum: Acanthocephala

Answer 2

Thorny- headed worms
Retractable spiny proboscis
No digestive tract
Separate sexes

Question 3

Phylum: Annelida

Answer 3

Segmented worms
Night crawlers
Ex: earthworm that are normally non-parasitic and can be intermediate for parasitic diseases
Leeches (blood sucking)

Question 4

Phylum Platyhelminthes

Answer 4

Flatworms
Classes: Turbellaria (planarian, non-parasitic), Trematoda, Cestoda

Question 5

What orders are within the Trematoda class?

Answer 5

Monogenea (found on skin and gills of aquatic animals)
Digenea (small, large animals and humans, ASEXUAL)

Question 6

What orders are within the Cestoda class?

Answer 6

Pseudophyllidea (false tapeworm)
Cyclophyllidea (true tapeworms)

Question 7

Parasite

Answer 7

An organism that lives at the expense of another organism called the host
Ex: louse, virus, tick

Question 8

What are the 3 groups of parasites?

Answer 8

Anthropod
Protozoan
Helminth

Question 9

Examples of arthropods

Answer 9

Lice
Fleas
Flies
Ticks
Mites

Question 10

Protozoans

Answer 10

Unicellular organism
Live intracellular or extracellular
Can cause giardia

Question 11

Example of protozoan

Answer 11

Plasmodium: malaria transmitted by mosquito
Toxoplasma and Cryptosporidium: coccidia found in humans and animals

Question 12

Examples of Helminths

Answer 12

Tapeworms
Roundworms
Hookworms
Whipworms
Pinworms