AMOEBA Flashcards
ArE PROTOZOANS unicellular or multi?
unicellular
are they motile or not?
motile
in what characteristics they are grouped?
by their locomotor apparatus
their cytoplasm is divided into how many andwhat parts?
2 - ectoplasm and endoplasm
in what type of cytoplasm we can find the locomotor apparatus?
ectoplasm
locomotor apparatus of amoeba
pseudopodia
locomotor apparatus of flagellates
flagella
locomotor apparatus of cilliates
cilia
what other parts are we can find under the ectoplasm aside from the locomotor apparatus?
cytostome and cyttopyge
locomotor apparatus that will assist flagellates flagella?
undulating membrane
Structure for Procurement of food
cytostome
a cell mouth is called
cytostome
a countrpart of cytostome “cell anus” for excretion
cytopyge
a part of cytoplasm that is for vital functions and processes
endoplasm
protozoa’s 2 stage
trophozoite and cyst
a stage where the amoeba is in vegetative or motile state/feeding stage/ a stage where it multiply
Trophozoite
a stage of amoeba where it is non motile/non feeding/didn’t undergo multiplication/ VERY INFECTIVE
cyst
this stage is more protected as it hast thick shell
cyst
genus exist in cyst form except?
trichomonas - it only exist in trophozoite
a first process to take place if the INFECTIVE form is ingested
excystation
a morphological version of cyst into trophozoite
excystation
from trophozoite to cyst
encystation
a morphological version of trophozoite into cyst
encystation
once the environment become unfavorable for it to replicate what will be the next process?
encystation it will now become cyst
triggers of encystation (t to cyst)
overpopulation, ph changes, depletion of nutrients and oxygen
sexual process of amoeba
syngamy
thisprocess is a union of gametes
syngamy - sexual
asexual process for amoeba
binary fission
the only member of protozoology that is pathogenic
intestinal amoeba
class lobosea’ simportant characteristics has the ability to extend cytoplasm in a form of?
pseudopods
first member of entamoeba
entamoeba histolytica
mode of transmission of entamoeba histolytica
ingestion feco-oral, unprotected sex
infective stage of E.histolytica
quadrinucleated cyst -4 cyst
appearance of the pseudopods in E. Histolytica
fingerlike pseudopods
number of nucleus for Trophozoite in E.histolytica
1
what is a chromatin found in the nucleus
karyosome
a chromatic material that will surround the karyosome or the nuclear membrane is called
peripheral chromatin
options for peripheral chromatin
even and unevr - if even , it will form an perfect circle
the presence of __ as inclusions will be the diagnostic for e. HISTOLYTICA
INGESTED RBC
chromatoid bars of E. histolytica
cigar shape - rounded points
for the pathogenesis, we call the disease for the amoeba as
amoebiasis
2 forms of amoebiasis
non invasive and invasive
a form of amoebiasis that will comprises the asymptomatic carrier state of the host
“asymptomatic cyst passer”
non nvasive
ameba colony on intestinal mucosa
non invasive
in invasive form, it has 2 types, what are day?
symptomatic intestinal amoebiasis
and asymptomatic extratestinal amoebiasis
first stage in symptomatic intestinal amoebiasis is the
amoebic colitis
during this stage of symptomatic the patient will encounter gastrointestinal gas such as diarrhea
amoebic colitis
this symptomatic stage - amoebic colitis can progress into
amoebic dysentery
“bloody diarrhea”
amoebic dysentery - stool with pus cells and mucus during the microscopic examination
during the 2nd stage of symptomatic invasive amoebiasis, there will be a diagnosis of
flask shaped ulcers causing dysentery
secondary bacterial infection is in this case
amoebic dysentery stage - symptomatic invasive amoebiasis
once the trophozoite migrates and penetrated the intestinal mucosa, it will undergo what process or stage?
extraintestinal amoebiasis
an invasive stage wherein the amoeba will g out of intestine
extraintestinal amoebiasis
the main site of infection of extraintestinal amoebiasis is the
right part of the liver
Chocolate-colored ‘pus will indicate
amebic liver abscess
Treatment for aAsymptomatic amoebic infection
Iodoquinol or Paromomycin
infection of amoeba on the right part/lobe of the liver is called ALA, what does ALA stands for
amebic liver abscess
more example of manifestation when examined microscopically is the thickening of wall called
ameboma
more example of manifestation is the inflammation of the abdominal wall or the perforation of the intestinal wall which is called
peritonitis
lessions might expand to diaphram affecting the lungs, it will lead to
Pulmonary Amoebiasis or amoebic pneumonitis
Fever, cough, dyspnea, pain in the upper quadrant of the abdomen
Pulmonary Amoebiasis
Rupture of liver abscess through
diaphragm
Pulmonary Amoebiasis
Treatment for symptomatic amoebic infection
Metronidazole or Tinidazole
MORPHOLOGICALLY IDENTICAL to Entamoeba histolytica
Entamoeba dispar, entamoeba hartmanni, and Entamoeba moshkovskii
if we recover cyst, HOW do we report E. dispar and E. histolytica
Report it as Entamoeba
Non pathogenic entamoeba histolytica STRAIN
Entamoeba dispar
based on the stool consistency for E. dispar, if it’s watery, we report
trophozoite
based on the stool consistency for E. dispar, if it’s formed, we report
cyst
Entamoeba coli
Trophozoite:
size:
karyosome:
chromatin:
endoplams
Entamoeba coli
Trophozoite:
size: 20-25
karyosome: eccentric
chromatin: unevenly
endoplasm: more vacuolated
the most number of nuclei in cysts form
Entamoeba coli
cyst form of entamoeba coli
number or nuclei
chromatoid bars
shape of cyst
cyst form of entamoeba coli
number or nuclei - 1-8
chromatoid bars- splintered
shape of cyst Large, spherical or ovoidal shaped cyst, 15-25 mm
small race of entamoeba histolytica
entamoeba hartmanni
rarely found in humans
* commensal of pigs & monkeys
Entamoeba
polecki
its mature cyst has only one nucleus
entamoeba polecki and iodamoeba butschlii
a free living enatamoeba
Entamoeba moshkovskii
has irregular karyosome, no peripheral chromatin in t stage, and has blunt like karyosomes
endolimax nana
2 members that has no peripheral chromatin
Endolimax nana and Iodamoeba bütschlii
cross eyed? cysts
endolimax nana
stained with iodine
iodomoeba butschlii
its cyst has gylcogen vacoule
iodamoeba butschlii
its karyosone is quite large
iodamoeba butschlii
oral cavity
* no cyst stage
periodontal disease
Entamoeba
gingivalis
