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82 Cards in this Set

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Identify flagella
undulating membrane, blepharoplast, nucleus, axostyle, food vacuole
Identify flagella
undulating membrane, blepharoplast, nucleus, axostyle, food vacuole
Identify two nuclei, flagella, axonemes, median bodies
A-two nuclei, B-flagella, C-axonemes, D-median bodies
Where are trophozoites of giardia lamblia found in human?
small intestine
What are the diagnostic characteristics of giardia lamblia?
tear shaped organism with 2 nuclei
or a cyst with 4 nuclei and retracted flagella
What is the transmissiona stage of giardia lamblia?
cyst
What confirms an infection with giardia lamblia?
finding troph and/or cysts in feces
How are trophozoites/cysts of giardia lamblia released?
in feces
Cyst of giardia lamblia
Identify organism
Trophozoite of Trichomonas vaginalis
Identify organism
Where are trichomonas vaginalis found in the human?
females: vagina, urethra & uterus
Males: urethra & prostate
How is trichomonas vaginalis transmitted?
through sexual contact
contaminated bath water, wash clothes and towels and 1% through birth
How is infection with trichomonas vaginalis confirmed?
finding troph in vaginal smear or uterine samples
What is the transmissionable stage of trichomonas vaginalis?
the trophozoite
What is diagnostic characteristic of Trichomonas vaginalis?
pear-shaped with visible flagella
Where is Entamoeba histolytica found in the human?
in large intestine with preference for anterior end in crypts of lining
cysts formation in posterior end
How are Entamoeba histolytica released from the human?
both trophs and cysts are released in feces
What is diagnostic characteristics of Entamoeba histolytica?
immunological tests
(cannont use cysts/trophs - commensals look similar)
What are the features for identification for Entamoeba histolytica?
peripheral chromatin granules with homogenous cytoplasm
What are diagnostic characteristics of the mature cysts of the Entamoeba histolytica.
4 nuclei with peripheral layer of chromatin granules
Trophozoite of Entamoeba histolytica
Identify stage and organism
Mature cyst of Entamoeba histolytica
Identify stage and organism
Identify cyst wall, cytoplasm, nuclei and chromatoid body
cyst of Entamoeba histolytica
a-cyst wall b-cytoplasm
c- nuclei d-chromatoid body
Identify organism, then
cell membrane, cytoplasm, food vacuole, nuclear membrane, karyosome, chromatin granule
Trophozoite of Entamoeba histolytica
A - cell membrane B-cytoplasm
C- food vacuole D-karyosome
E -Nuclear membrane F-chromatin granules
Immature cyst of Entamoeba histolytica
Identify stage and organism
Identify cyst wall, cytoplasm, nuclei, glycogen vacule, chromatoid bodies
A-cyst wall, B-cytoplasm, C-nuclei, D-glycogen vacule, E-chromatoid bodies
A-cyst wall, B-cytoplasm, C-nuclei, D-glycogen vacule, E-chromatoid bodies
Identify
What is phylum and class of the plasmodium species?
Phylum: Apicomplexa
Class: Hemosporea
What are the four species of plasmodium that infect humans?
P. falciparum, P. vivax, P. malaria, P. ovale
What are schiiffner's dots?
invaginations of cell membrane of RBC - characteristic of P.vivax or P.ovale
What is diagnostic characteristic of ring stage blood infected with a Plasmodium species?
RBC with internal organism with outer ring of blue cytoplasm, large central vacuole and a red nucleus.
What is diagnostic characteristic of microgametocytes/macrogamerotcytes in RBC?
organism inside of RBC with pigment granules, pink-red nucleus
Plasmodium species - ring stage
Identify organism and stage
Plasmodium falciparum - gametocyte
Identify species and stage
trophozoite of toxoplasma gondii
Identify organism and stage
Where are Toxoplasma gondii found in the human?
in any cell, prefers skeletal muscle, cardiac muscle and certain brain cells & phagocytes
How are toxoplasma gondii release from human body?
They are not released
How is a person infected with Toxoplasma gondii?
by ingesting infected meat (pork, beef, mutton) ingesting oocysts or through congenital transmission
What is the diagnostic characteristics of toxoplasma gondii?
size and shape & nucleus that stains blue
How is toxoplasma gondii diagnosed?
Through immulogical tests
What is unique about Balantidium coli?
Only ciliated protozoan that infects humans
What disease does B. coli cause?
balantidiasis
What is transmissable stage of Balantidium coli?
cysts released in feces
What are the vehicles of transmission for Balantidium coli?
contaminated food, hands and water
What is the main source of infection of Balantidium coli for humans?
other humans
What is the major damage caused by Balantidium coli?
ulceration of lining of large intestine
Where are amastigotes of hemoflagellates found in the human body?
primarily intracellular
How are hemoflagellates transmitted to humans?
exclusively by insecto vectors
How is the species determined when finding an amastigote in the human?
by finding one in human cells, geographic distribution and disease manifestation
Amstigote of tryanosoma cruzi
Identify organism and stage
What are the diagnostic characteristics of an amastigote of trypanosoma cruzi?
Very small, oval to round nucleus w/kintoplast.
(nested in cardiac muscle)
trypomastigote of trypanosoma sp
Identify organism and stage
Where are trypomastigote of trypanosoma sp found in humans?
blood, CSF, lymph.
How is trypomastigote of trypanosoma sp released?
It is not released
How are humans infected with trypanosoma?
by insect vectors
What is diagnostic importance of finding a trypomastigote in the blood?
presence, along with geographic location will give sp ID
What are the diagnostic characteristics of the trypomastigote?
spindle-shaped organism w/undulating membrane or flagellum
What is the phylum and class of the hemoflagellates?
Phylum: sarcomastigophora
class: mastigophora
What stages are present in the human for Leishmania
only promastigote and amastigote
What stages are present in the human for Trypanosoma cruzi?
trypomastigote and amastigote
Trophozoite of Balantidium coli
Identify organism and stage
Trophozoite Balantidium coli
Identify organism and stage
Cyst of Balantidium coli
Identify organism and stage
How is an infection of Balantidium coli diagnosed?
finding trophs/cysts in feces
How does Balantidum coli reproduce?
by transverse binary fission
or sexual conjugation
What is macronucleus' function in Balantidium coli?
metabolic nucleus, day-to-day functions
What is micronucleus' function in Balantidium coli?
Hereditary/permenant nucleus
What is the diagnostic characteristics of the Balantidium coli?
large protist w/large nucleus and presence of cilia
Identify A- cuticle, B-hypodermis, C- muscular layer
Identify A- cuticle, B-hypodermis, C- muscular layer
Identify A-lateral lines, B-dorsal line, C-dorsal nerve cord
Identify A-lateral lines, B-dorsal line, C-dorsal nerve cord
Identify: contractile portion of muscle cell, non contractile portion portion, cytoplasmic extension
dentify: A-contractile portion of muscle cell, B-non contractile portion portion, C-cytoplasmic extension
Identify the A-intestine, B-Columnar epithelial cells, C-
Brush border, D-Amorphous layer
Identify the A-intestine, composed of Columnar epithelial cells with a Brush border, The Amorphous layer is the outermost layer.
Identify Ovaries, oocytes, rachis, oviducts, wall of oviduct, lining of oviducts, oocytes, Uteri, wall of uteri, nurse cells, eggs
Identify (A)Ovaries, oocytes, rachis,(D) oviducts, wall of oviduct, lining of oviducts, oocytes, (B) Uteri, wall of uteri, (C)nurse cells, eggs
filariform larva of necator americanus
Identify organism and stage
Necator americanus
filariform esophogus
identify organism and stage and type of esophogus
Encapsulated larva of Trichinella spiralis
Identify organism and stage
First stage larva of Trichinella spiralis (encapsulated)
Identify larva (what stage?) and cyst wall
microfilaria of Wuchereria bancrofti
Identify organism and stage
Microfilaria of Wuchereria bancrofti
identify organism and sheath, body wall, nuclei
Identify organism and visible parts
Egg of Ascaris lumbricoides
(zygote, egg shell, rough outer coat)
Egg of Necator americanus or Ancylostoma duodenale
(cells of embryo, thin shell)
Identify and identify visible parts
identify and label features
Egg of Trichuris trichiura
(zygote, outer shell, inner shell, polar plugs)
Identify and name visible features
Egg of Enterobius vermicularis
(zygote, shell)