Quizlet 9 Flashcards
(20 cards)
What are the Ascaris of birds?
Ascaris galli
a. columbae
a. numidae
a. dissimilis
What is the morphology of Ascidarids?
No buccal capsule, 3 well developed lips
IH of metastrongylus is?
earthworms
Method of diagnosis of Metastrongyles in swine (lung)?
flotation method
Write the name of species the helminths of horse small intestine
Anoplocephala perfoliata (iliocecal junction), Anoplocephala magna,
Paranoplocephala mammilana,
Strongyloides westeri
Describe the digestive system of Lepidoptera
oral sucker, prepharynx, muscular pharynx, oesophagus, paired intestine, anus absent
Describe parthenogony in the moth developmental cycle
it occurs after penetration of the miracidium into the 1st MH, where it loses its quills and changes either directly into a rhedia or into a vacuolated sporocyst. In it, a daughter generation develops- daughter sporocysts, or rhedia. In these, cercariae are formed by parthenogenesis
The family Schistosomatidae is characterized by:
gonochorism
What is protandric hermaphroditism?
individual has male sex organs in the first third of the body, male and female sex organs in the second third. organs, and in the last third there is only a uterus filled with eggs
What are botrytis? (bothria)
Suction slits located on the scolex (head) of the cestode, have relatively poorly developed musculature and serve to attach
Monesia expansa has a developmental stage:
cysticercoid
What characterizes the “ascaroid type” of development
enterohepato-pulmonary migration, L3 to trachea, L4 by ingestion of expectorated sputum into the small intestine Characterized by entero-hepato-pulmonary passaging of post-infective larvae after hatching in the small intestine and entering the intestinal mucosa; Ascaris, Parascaris
Species determination of the eggs of the so-called large strongyles of horses in vivo is based on:
l3 larvae
Name the dead rabbits
Passalurus ambiguus
What do flukes fix in the host’s body?
oral and abdominal suction, which is not present in all species
Characterize cystogony in the developmental cycle of Lepidoptera
transformation of cercariae to inf.metacercariae, cercariae to inf.metacercariae, cercariae to inf. It sheds its tail and envelops itself with its own secretion and is infective in 1-3 days. -cercariae penetrate directly into the DH
- cercariae encyst in a very resistant cover, lose their tail and attach to vegetation, various objects or the surface layer of water, DH becomes infected by eating encysted cercariae- adolecariae
-cercariae penetrate into the 2nd MH, where they change into metacercariae
-cercariae in the 2nd MH change into mesocercariae and only in the 3rd MH metacercariae are formed
What are the so-called Furcocerciaria?
Cercariae with a tail,which arise from rhedia that have a forked tail, swim in water and actively penetrate the host through the skin, e.g. in the family Schistosomatidae
What are ovipara
Oviparous, the female sheds eggs into the surrounding area
Name the mice:
Syphacia muris,
S.obvelata,
Aspiculuris tetraptera
What is a metacercarium?
inf. stage of butterflies
