TEGUMENT
The syncytial, or occasionally ciliated, cellular epithelium
covering the body of the Platyheiminthes.
TERTIAN MALARIA
A malarial infection where the fevers recur every 48 hours.
Caused by Plasmodium vivax, P.ovale and P. falciparum.
TRANSPORT HOST
A paratenic host; where the parasite lives a portion of its life
cycle but does not undergo further development.
TREMATODA
The name give to the class of flatworms consisting of the
flukes.
TROPHOZOITE
The active, vegetative, feeding, and motile stage of a
protozoan organism.
TRYPANOSOME
An organism belonging to the genus Trypanosoma.
TRYPOMASTIGOTE
A form of the Trypanosomatidae which has the kinetoplast
located at the extreme posterior end well behind the nucleus.
The flagellum, attached to an undulating membrane, extends
anteriorly terminating in a free flagellum.
U
UNDULATING
A fin-like ridge of the cell membrane along the surface of the
MEMBRANE
cell; with a flagellum imbedded along the edge; used for cell
motility by certain flagellates.
UNILOCULAR CYST
A larval form seen in the genus Echinococcus which exhibits
an inner budding of brood capsules with numerous
protoscolices bound by a laminated membrane.
UNIT MEMBRANE
The three-layered membrane that covers the protozoan cell;
a central lipid layer sandwiched between two protein layers.
URBANIC DISEASE
A disease that is prevalent in the areas where people live;
peculiar to the human environment.
V
VACUOLE
Any of a variety of spaces or cavities in the cytoplasm of the
protozoan cell which may contain food, glycogen or may be
functional in purpose (osmoregulatory).
VECTOR
A carrier, usually an arthropod, which transmits an infective
agent from one host to another.
MD0841
A-20