Platyhelminthes key words Flashcards
Define Acetabulum
A cup shaped structure
Define Auricle
sensory organs on head
Define bilateria
Organisms with bilateral symmetry
Define cercaria
Free-swimming larval stage in which parasitic fluke passes from intermediary host to definitive host
Define Cysticercus
a larval tapeworm that is at a stage in which the scolex is inverted in a sac, and that is typically found encysted in the muscle tissue of the host.
Define Deuterostomia
Organisms where blastopore is anus, enterocoely, and radial cleavage
Define Diverticulum
The small branchings of the digestive tract
Define ectoparasite
parasite that lives on the outside of the host
Define enterocoele
coelomic cavity
Define eucoelomate
animals with coeleom
Flame cell
Another name for the protonephridia
Define gravid proglottid
A proglottid filled with eggs
Define larval amplification
Asexual increase of sporocysts into numerous redia
Define lophotrochozoa
an animal with either a lophophore or a trochozoite larva
Define Mehlis gland
the ootype
Metacercaria definition
The fluke that matures into the adult from a cercaria
Define the miracidium
Free living fluke that develops from the egg and infects snail
Define nephridiopore
The external opening of the nephridium
Define the ootype
The part of the oviduct where the egg is fertilized and given its yolk
Define oviduct
Where the eggs are passed down from the ovarys to the ootype
