Lecture 1: Introduction to Veterinary Parasitology Flashcards
How do taxonomists classify organisms into groups
Based on characteristics/characters that group members share in common
Characters: morphological, physiological, molecular, behavioral
What is the scutum
Dorsal plate (back)
How do you differentiate between ornate and inornate
Coloration/markings are present in ornate but not in inomate
Classifying the following as ornate, inornate and then long vs short palps
Both: ornate
Left: long palps
Right: short palps
Identify the following as ornate or inornate and then long vs short palps
Both: inornate
Left: long palps
Right: short palps
What does symbiosis mean
Living together
What is a mutualism symbiosis
Both the Protozoa and host benefit
Provide an example of mutualism
Gut flagellate and termite
What is a commensal symbiosis
Protozoa benefits and the host is neither harmed or helped
Provide an example of commensalism
Entamoeba coli and monkey
What is the parasitic symbiosis
Protozoan benefits and host is harmed
Provide an example of parasitism
E. Histolytica and monkey
How do we differentiate commensal vs parasitic amoebae histologically
Commensal amoebae mature cyst contain 8 nuclei (octonucleate)
Parasitic amoebae mature cyst contain 4 nuclei (quadrinucleate)
What are the three traditional groups of parasites
- Parasitic Protozoa
- Helminths/ parasitic worms
- Parasitic arthropods
Name 3 common parasitic worms/helminths
- Nematodes
- Tapeworms
- Flukes