Term
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Definition
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Term
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Definition
amoeba
flagellates
ciliates
sporozoa
microsporidia |
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Term
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Definition
| nematodes and platyhelminths |
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Term
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Definition
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Term
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Definition
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Term
| nematodes and platyhelminths |
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Definition
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Term
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Definition
| intestinal, atrial and blood/tissue |
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Term
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Definition
| giardia lamblia, dientamoeba fragilis, chilomastix mesnili, trichomonas hominis |
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Term
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Definition
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Term
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Definition
| leishmania spp, trypanosoma cruzi, trypanosoma brucei rhodesiense, trypanosoma brucei gambiense |
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Term
| leishmania spp, trypanosoma cruzi, trypanosoma brucei rhodesiense, trypanosoma brucei gambiense |
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Definition
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Term
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Definition
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Term
| giardia lamblia, dientamoeba fragilis, chilomastix mesnili, trichomonas hominis |
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Definition
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Term
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Definition
Trophozoites:
– Size: 12-15 μm
– Bilaterally symmetric
– Two anterior nuclei, central karyosomes
– Eight flagella
– Central axoneme
– Median body
Cysts:
– Size: 11-14 μm
– Shape: oval or ellipsoid
– 2 or 4 nuclei
– Central axoneme
– Fibrils |
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Term
|
Definition
Size: 12-15 μm
– Bilaterally symmetric
– Two anterior nuclei, central karyosomes
– Eight flagella
– Central axoneme
– Median body |
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Term
|
Definition
Size: 11-14 μm
– Shape: oval or ellipsoid
– 2 or 4 nuclei
– Central axoneme
– Fibrils |
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Term
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Definition
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Term
– Size: 12-15 μm
– Bilaterally symmetric
– Two anterior nuclei, central karyosomes
– Eight flagella
– Central axoneme
– Median body |
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Definition
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Term
– Size: 11-14 μm
– Shape: oval or ellipsoid
– 2 or 4 nuclei
– Central axoneme
– Fibrils |
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Definition
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Term
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Definition
Oocysts in stool
• DFA or modified acid fast stain
• Shape: Spherical
• Size: 4-6 μm
• Color: Red (MAF stain)
• 4 sporozoites are sometimes visible within oocyst |
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Term
Oocysts in stool
• DFA or modified acid fast stain
• Shape: Spherical
• Size: 4-6 μm
• Color: Red (MAF stain)
• 4 sporozoites are sometimes visible within oocyst |
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Definition
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Term
| cryptosporidium parvum is an __________ |
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Definition
| obligate intracellular parasite |
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Term
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Definition
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Term
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Definition
Oocysts in stool
• Modified acid fast stain
• Shape: Spherical
• Size: 8-10 μm (twice the size of Cryptosporidium oocysts)
• Color: Red (MAF stain) |
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Term
Oocysts in stool
• Modified acid fast stain
• Shape: Spherical
• Size: 8-10 μm (twice the size of Cryptosporidium oocysts)
• Color: Red (MAF stain) |
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Definition
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Term
| cyclospora cayetanensis is an _________ |
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Definition
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Term
| Cyclospora cayetanensis spreads by |
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Definition
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Term
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Definition
Oocysts in stool. In between adjacent enterocytes
• Modified acid fast stain
• Football shaped (oval with tapered ends)
• Size: 20-33 μm long X 10-19 μm wide
• Single sporoblast inside
• Color: Red (MAF stain) |
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Term
Oocysts in stool. In between adjacent enterocytes
• Modified acid fast stain
• Football shaped (oval with tapered ends)
• Size: 20-33 μm long X 10-19 μm wide
• Single sporoblast inside
• Color: Red (MAF stain) |
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Definition
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Term
|
Definition
PAS, GMS, acid-fast stains in tissue biopsy
• Modified trichrome for fecal smears: characteristic orange-red color
• Size: 1-2 μm
• Shape: round
• Red “band” or dot is often present |
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Term
PAS, GMS, acid-fast stains in tissue biopsy
• Modified trichrome for fecal smears: characteristic orange-red color
• Size: 1-2 μm
• Shape: round
• Red “band” or dot is often present |
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Definition
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Term
| small spores in the apical cytoplasm of the enterocytes |
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Definition
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Term
|
Definition
| intestinal and free living |
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Term
|
Definition
entamoeba histolytica,
entamoeba dispar,
entamoeba hartmanni,
entamoeba coli
endolimax nana
iodamoeba buetschlii
blastocystis hominis |
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Term
|
Definition
acanthomoeba spp.
balamuthia mandrillaris
naegleria fowleri |
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Term
|
Definition
Trophozoites:15-20 μm, Frothy cytoplasm; Single nucleus, one central pinpoint karyosome; Evenly distributed peripheral chromatin granules line the nuclear membrane; May ingest RBC.
Cysts: 12-15 μm, round; 1, 2, or 4 nuclei per cyst; same nuclear morphology as trophozoites; Cytoplasm may contain cigar-shaped chromatoid bars and glycogen vacuoles |
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Term
| entamoeba histolytica cysts: |
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Definition
| 12-15 μm, round; 1, 2, or 4 nuclei per cyst; same nuclear morphology as trophozoites; Cytoplasm may contain cigar-shaped chromatoid bars and glycogen vacuoles |
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Term
| entamoeba histolytica trophozoites: |
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Definition
| Trophozoites:15-20 μm, Frothy cytoplasm; Single nucleus, one central pinpoint karyosome; Evenly distributed peripheral chromatin granules line the nuclear membrane; May ingest RBC. |
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Term
|
Definition
Non-pathogenic
Trophozoites: 20-25 μm, Single nucleus; Large, eccentrically located karyosome; Peripheral chromatin is course and distributed irregularly
Cysts: round or oval, 15-25 μm, up to 8 nuclei |
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Term
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Definition
| Cysts: round or oval, 15-25 μm, up to 8 nuclei |
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Term
| entamoeba coli trophozoites: |
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Definition
| Trophozoites: 20-25 μm, Single nucleus; Large, eccentrically located karyosome; Peripheral chromatin is course and distributed irregularly |
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Term
| Amoebic Meningoencephalitis caused by: |
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Definition
| Naegleria fowleri and Acanthamoeba |
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Term
|
Definition
Healthy host
Primary amoebic meningoencephalitis
Swimming, diving, bathing, or playing in warm stagnant freshwater
Through the cribriform plate
Culture with E. Coli lawn, visual trail |
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Term
|
Definition
Granulomatous amebic encephalitis
Acanthamebic keratoconjunctivitis
Debilitated or immunocompromised host |
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Term
Granulomatous amebic encephalitis
Acanthamebic keratoconjunctivitis
Debilitated or immunocompromised host |
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Definition
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Term
Healthy host
Primary amoebic meningoencephalitis
Swimming, diving, bathing, or playing in warm stagnant freshwater
Through the cribriform plate
Culture with E. Coli lawn, visual trail |
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Definition
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Term
|
Definition
Diseases
Keratitis, contact lenses, test mitochondria 16s RNA
Granulomatous amoebic encephalitis
Diagnosis: Trophozoites and cysts in corneal scrapings, CSF or brain biopsy
Trophozoites: 30 μm, large central karyosome in nucleus
Cysts: 10-25 μm, round with double wall, wrinkled outer cyst wall |
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Term
Diseases
Keratitis, contact lenses, test mitochondria 16s RNA
Granulomatous amoebic encephalitis
Diagnosis: Trophozoites and cysts in corneal scrapings, CSF or brain biopsy
Trophozoites: 30 μm, large central karyosome in nucleus
Cysts: 10-25 μm, round with double wall, wrinkled outer cyst wall |
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Definition
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Term
Diseases
Keratitis, contact lenses, test mitochondria 16s RNA
Granulomatous amoebic encephalitis |
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Definition
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Term
Diagnosis: Trophozoites and cysts in corneal scrapings, CSF or brain biopsy
Trophozoites: 30 μm, large central karyosome in nucleus
Cysts: 10-25 μm, round with double wall, wrinkled outer cyst wall |
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Definition
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Term
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Definition
All stages seen
• RBCs enlarged
• As RBC enlarges, membrane remains smooth
• Schuffner’s granules
• Schizonts: >12 merozoites
• Gametocyte fills most or all of host cell
• Cycle: 48 hours
• Duffy (a-b-), resistant to vivax, receptor for vivax
• Hereditary elliptocytosis, stomatocytic type, band 3 defect, protection against vivax |
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Term
All stages seen
• RBCs enlarged
• As RBC enlarges, membrane remains smooth
• Schuffner’s granules
• Schizonts: >12 merozoites
• Gametocyte fills most or all of host cell
• Cycle: 48 hours
• Duffy (a-b-), resistant to vivax, receptor for vivax
• Hereditary elliptocytosis, stomatocytic type, band 3 defect, protection against vivax |
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Definition
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Term
| Hereditary elliptocytosis, stomatocytic type, band 3 defect, protection against ____ |
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Definition
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Term
| Duffy (a-b-), resistant to ____, receptor for _____ |
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Definition
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Term
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Definition
All stages seen
• RBCs enlarged
• As RBC enlarges, membrane shows projections
• Schuffner’s stippling in intermediate forms
• Schizonts: ≤12 merozoites
• Gametocyte does not fill entire host cell
• Cycle: 48 hours |
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Term
All stages seen
• RBCs enlarged
• As RBC enlarges, membrane shows projections
• Schuffner’s stippling in intermediate forms
• Schizonts: ≤12 merozoites
• Gametocyte does not fill entire host cell
• Cycle: 48 hours |
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Definition
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|
Term
Schizonts: ≤12 merozoites
• Gametocyte does not fill entire host cell |
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Definition
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Term
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Definition
Heavy parasitemia, medical emergency
• Only early ring forms and gametocytes are seen
• Rings: double chromatin dots common (“headphones”)
• Marginal rings common (applique cells)
• RBCs not enlarged
• No Schuffner’s stippling
• Banana-shaped gametocytes
• Cycle: 36-48 hours
• Sickle cell trait, G6PD, resistant to falciparum |
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Term
Heavy parasitemia, medical emergency
• Only early ring forms and gametocytes are seen
• Rings: double chromatin dots common (“headphones”)
• Marginal rings common (applique cells)
• RBCs not enlarged
• No Schuffner’s stippling
• Banana-shaped gametocytes
• Cycle: 36-48 hours
• Sickle cell trait, G6PD, resistant to falciparum |
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Definition
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|
Term
Banana-shaped gametocytes
• Cycle: 36-48 hours |
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Definition
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Term
Rings: double chromatin dots common (“headphones”)
• Marginal rings common (applique cells)
• RBCs not enlarged |
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Definition
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Term
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Definition
| Female mosquito injects "sporozoites" into human skin; A sporozoite travels into liver where It matures into a "schizont" (mother cell) which produces 30000–40000 "merozoites" (daughter cells) within six days. The merozoites burst out and invade red blood cells. Within two days one merozoite transforms into a trophozoite, then into a schizont and finally 8–24 new merozoites burst out from the schizont and the red cell as it ruptures. Then the merozoites invade new red cells. A merozoite can also develop into a "gametocyte" which is the stage that can infect a mosquito. |
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Term
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Definition
Mostly mature forms seen
• Few ring forms
• RBCs not enlarged
• No Schuffner’s stippling
• Trophozoites can appear as “band forms”
• Schizonts: 6−12 merozoites, form rosettes
Heavy malarial pigment
• Cycle: 72 hours |
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Term
Mostly mature forms seen
• Few ring forms
• RBCs not enlarged
• No Schuffner’s stippling
• Trophozoites can appear as “band forms”
• Schizonts: 6−12 merozoites, form rosettes
Heavy malarial pigment
• Cycle: 72 hours |
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Definition
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Term
No Schuffner’s stippling
• Trophozoites can appear as “band forms”
• Schizonts: 6−12 merozoites, form rosettes |
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Definition
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|
Term
No Schuffner’s stippling
• Trophozoites can appear as “band forms”
• Schizonts: 6−12 merozoites, form rosettes |
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Definition
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Term
| Babesiosis (Babesia microti) |
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Definition
Tick-Ixodes spp (deer tick). Northeastern US—Long Island
Fever, anemia, hepatosplenomegaly
• Mostly as ring forms in RBCs. More pleomorphic than malaria
Small pleomorphic ring, <1/5 diameter of RBC
Intra- and extra- RBC
No schizont, gametocytes or pigment
Maltese cross, vacuolated |
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Term
No schizont, gametocytes or pigment
Maltese cross, vacuolated |
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Definition
| Babesiosis (Babesia microti) |
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Term
Mostly as ring forms in RBCs. More pleomorphic than malaria
Small pleomorphic ring, <1/5 diameter of RBC
Intra- and extra- RBC |
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Definition
| Babesiosis (Babesia microti) |
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Term
|
Definition
African
“S” shaped
Tsetse fly
Sleeping sickness |
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Term
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Definition
Trypomastigotes in blood
Size: 20 μm long
Central nucleus
Large terminal kinetoplast
Short flagellum at anterior end |
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Term
American
“C” shaped
Reduviid or kissing bug
Chaga’s disease |
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Definition
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Term
|
Definition
American
“C” shaped
Reduviid or kissing bug
Chaga’s disease |
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Term
Trypomastigotes in blood
Size: 20 μm long
Central nucleus
Large terminal kinetoplast
Short flagellum at anterior end |
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Definition
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|
Term
African
“S” shaped
Tsetse fly
Sleeping sickness |
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Definition
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Term
|
Definition
Sandfly (phlebotomus)
Amastigotes (tissue form of the parasite)
• Size: 2-4 μm
• Shape: round to oval
• Cell contains nucleus and kinetoplast, PAS-
• Kinetoplast: oval or rod-shaped structure
• Amastigotes have no flagellum
• Histoplasma: halo-like effect, no kinetoplast, PAS+ |
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Term
Sandfly (phlebotomus)
Amastigotes (tissue form of the parasite)
• Size: 2-4 μm
• Shape: round to oval
• Cell contains nucleus and kinetoplast, PAS-
• Kinetoplast: oval or rod-shaped structure
• Amastigotes have no flagellum
• Histoplasma: halo-like effect, no kinetoplast, PAS+ |
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Definition
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|
Term
Sandfly (phlebotomus)
Amastigotes (tissue form of the parasite) |
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Definition
|
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Term
|
Definition
| intestinal vs. tissue (filarial/other) |
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Term
|
Definition
enterobius vermicularis
trichuris trichiura
ascaris lumbricoides
ancyclostoma duodenale
necatur americanus
strongyloides stercoralis |
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Term
|
Definition
wuchereria bancrofti
brugia malayi
onchocerca volvulus |
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Term
| tissue nematodes (not filarial) (6) |
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Definition
trichinella spiralis
balisascaris procyonis
toxocara canis
toxocari cati
ancyclostoma caninum
ancyclostoma braziliense |
|
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Term
|
Definition
Wuchereria bancrofti: lymphatics & blood, mosquito
Brugia malayi: lymphatics & blood, mosquito
Loa loa: blood, skin and conjunctiva, mango (chrysops) fly
Onchocerca volvulus: skin and conjunctiva, black fly
Dirofilaria immitis: lung nodule, mosquito |
|
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Term
| Wuchereria bancrofti: lymphatics & blood, mosquito |
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Definition
|
|
Term
| Brugia malayi: lymphatics & blood, mosquito |
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Definition
|
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Term
| Loa loa: blood, skin and conjunctiva, mango (chrysops) fly |
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Definition
|
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Term
| Onchocerca volvulus: skin and conjunctiva, black fly |
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Definition
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Term
| Dirofilaria immitis: lung nodule, mosquito |
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Definition
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Term
| 2 discontinuous tail nuclei, + sheath |
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Definition
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Term
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Definition
|
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Term
| continuous row of tail nuclei, + sheath |
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Definition
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Term
| continuous row of tail nuclei, no sheath |
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Definition
|
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Term
| no tail nuclei, no sheath |
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Definition
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Term
|
Definition
Sheathed, nuclei stop short of end of tail, nocturnal
Adults live in lymphatics, lymphadenitis and lymphedema
Sheathed microfilarae migrate into lymph and blood channels
Mosquito |
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Term
|
Definition
Nocturnal
Sheathed, two small nuclei in tail
lymphadenitis and lymphedema |
|
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Term
| Loa loa (African eye worm) |
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Definition
Mango (chrysops) fly, eye worm, diurnal
Adults live in cornea or subcutaneous tissue
Sheathed, nuclei continue to end of tail |
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Term
|
Definition
| tabanid fly, horsefly, deerfly, mango fly |
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Term
|
Definition
Black fly (simulian)
Adults live in subcutaneous nodules
Microfilariae migrate across the anterior eye, causing keratitis, iritis, and blindness
Unsheathed microfilariae in skin, not blood
Leading cause of blindness in the world, “river blindness” |
|
|
Term
Black fly (simulian)
Adults live in subcutaneous nodules
Microfilariae migrate across the anterior eye, causing keratitis, iritis, and blindness
Unsheathed microfilariae in skin, not blood
Leading cause of blindness in the world, “river blindness” |
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Definition
|
|
Term
| Dirofilaria immitis (dog heartworm) |
|
Definition
Pulmonary infarcts or nodules, coin lesions, resembles carcinoma.
Humans acquire Dirofilaria when bitten by mosquitoes (rarely black flies), the arthropod vector and intermediate host. |
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Term
| Enterobius vermicularis (Pinworm) |
|
Definition
Pinworm paddle kit or Scotch tape prep
Eggs: colorless, thick-walled colorless shell; flattened on one side; 55 × 25 μm
Adult females: 8-13 mm
Infection: ingestion of eggs |
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|
Term
Pinworm paddle kit or Scotch tape prep
Eggs: colorless, thick-walled colorless shell; flattened on one side; 55 × 25 μm
Adult females: 8-13 mm
Infection: ingestion of eggs |
|
Definition
|
|
Term
| Trichuris trichiura (whipworm) |
|
Definition
Egg: barrel-shaped, 50 μm × 35 μm; Smooth yellow outer shell; Hyaline plug at each pole
Adults: 30-50mm long
Infection: ingestion of eggs |
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|
Term
Egg: barrel-shaped, 50 μm × 35 μm; Smooth yellow outer shell; Hyaline plug at each pole
Adults: 30-50mm long
Infection: ingestion of eggs |
|
Definition
| Trichuris trichiura (whipworm) |
|
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Term
|
Definition
Fertilized eggs: 55 x 40 μm; Round or slightly ovoid; Thick yellow-brown shell; ruffled outer layer.
Unfertilized eggs: 90 x 40 μm, ovoid, thinner shell than fertilized egg.
Adults: 20-35 cm long
Infection: ingestion of eggs |
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|
Term
Fertilized eggs: 55 x 40 μm; Round or slightly ovoid; Thick yellow-brown shell; ruffled outer layer.
Unfertilized eggs: 90 x 40 μm, ovoid, thinner shell than fertilized egg.
Adults: 20-35 cm long
Infection: ingestion of eggs |
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Definition
|
|
Term
|
Definition
| Ancyclostoma duodenale, Necator americanus |
|
|
Term
| Ancyclostoma duodenale, Necator americanus |
|
Definition
|
|
Term
Hookworm
(Ancyclostoma duodenale, Necator americanus) |
|
Definition
Eggs: ovoid, 50 x30 μm; Thin, smooth shell; Egg contents retract from shell, leaving a clear space
Larvae (compared with Strongyloides): similar size and shape, a longer buccal cavity, inconspicuous genital primordium
Adult: 7-11mm or 8-13mm long, anchor to intestinal mucosa
Infection: filariform larva penetrate skin of bare foot |
|
|
Term
Eggs: ovoid, 50 x30 μm; Thin, smooth shell; Egg contents retract from shell, leaving a clear space
Larvae (compared with Strongyloides): similar size and shape, a longer buccal cavity, inconspicuous genital primordium
Adult: 7-11mm or 8-13mm long, anchor to intestinal mucosa
Infection: filariform larva penetrate skin of bare foot |
|
Definition
Hookworm
(Ancyclostoma duodenale, Necator americanus) |
|
|
Term
Old World hookworm
Four teeth, absence of plates |
|
Definition
|
|
Term
New World hookworm
Two cutting plates
Lancets |
|
Definition
|
|
Term
| Strongyloides Stercoralis |
|
Definition
Rhabditiform larvae in stool: Length:180-380 um; width: 14-20um; Short buccal cavity and a bulbous esophagus; prominent genital primordium. Notched tail.
Adults: 2-2.5mm long, live in intestinal mucosa
Filariform lava penetrate skin or autoinfection
Gram negative sepsis, meningitis during migration
Steroids can lead to hyperinfection |
|
|
Term
Rhabditiform larvae in stool: Length:180-380 um; width: 14-20um; Short buccal cavity and a bulbous esophagus; prominent genital primordium. Notched tail.
Adults: 2-2.5mm long, live in intestinal mucosa
Filariform lava penetrate skin or autoinfection
Gram negative sepsis, meningitis during migration
Steroids can lead to hyperinfection |
|
Definition
| Strongyloides Stercoralis |
|
|
Term
Filariform lava penetrate skin or autoinfection
Gram negative sepsis, meningitis during migration
Steroids can lead to hyperinfection |
|
Definition
| Strongyloides Stercoralis |
|
|
Term
| Rhabditiform larvae in stool: Length:180-380 um; width: 14-20um; Short buccal cavity and a bulbous esophagus; prominent genital primordium. Notched tail. |
|
Definition
| Strongyloides Stercoralis |
|
|
Term
|
Definition
| blood flukes and hermaphroditic flukes |
|
|
Term
|
Definition
schistosoma mansoni
s. japonicum
s. haemotobium
s. mekongi
s. intercalatum |
|
|
Term
| hermaphroditic flukes (7) |
|
Definition
fasciola hepatica
fasciolopsis buski
clonorchis sinensis
opisthorchis viverrini
heterophyes heterophyes
metagonimus yokogawai
paragonimus westermani |
|
|
Term
| Clonorchis sinensis and Opisthorchis viverrini |
|
Definition
Egg: Ovoid, 27-35 μm X 12-19 μm; moderately thick, bile stained shell; prominent operculum with “shoulders”; Small knob at abopercular end (opposite operculum); Egg contains a miracidium
Biliary fibrosis, recurrent suppurative cholangitis, cholangiocarcinoma |
|
|
Term
Egg: Ovoid, 27-35 μm X 12-19 μm; moderately thick, bile stained shell; prominent operculum with “shoulders”; Small knob at abopercular end (opposite operculum); Egg contains a miracidium
Biliary fibrosis, recurrent suppurative cholangitis, cholangiocarcinoma |
|
Definition
| Clonorchis sinensis and Opisthorchis viverrini |
|
|
Term
| Biliary fibrosis, recurrent suppurative cholangitis, cholangiocarcinoma |
|
Definition
| Clonorchis sinensis and Opisthorchis viverrini |
|
|
Term
|
Definition
| Eggs: broadly ellipsoidal; 130-150 μm X 63-90 μm; Thin, bile-stained shell; Small, indistinct operculum; Sometimes a thickening or roughening at abopercular end of shell (opposite operculum); Egg is unembryonated |
|
|
Term
|
Definition
|
|
Term
|
Definition
Lung fluke, flatworm
Egg:
80-90 × 40-45 µm,
yellow-brown
Ovoid or elongate
Thick shell, asymmetrical with one end slightly flattened
Operculum at the large end, thickened opposite (abopercular) end |
|
|
Term
Lung fluke, flatworm
Egg:
80-90 × 40-45 µm,
yellow-brown
Ovoid or elongate
Thick shell, asymmetrical with one end slightly flattened
Operculum at the large end, thickened opposite (abopercular) end |
|
Definition
|
|
Term
Egg:
80-90 × 40-45 µm,
yellow-brown
Ovoid or elongate
Thick shell, asymmetrical with one end slightly flattened
Operculum at the large end, thickened opposite (abopercular) end |
|
Definition
|
|
Term
|
Definition
| human as definitive host vs. intermediate host |
|
|
Term
| cestodes with human as definitive host (5) |
|
Definition
hymenolepis nana
hymenolepis diminuta
taenia saginata
taenia solium
diphyllobothrium latum |
|
|
Term
| cestodes with humans as intermediate hosts |
|
Definition
echinococcosis (E. granulosis or multilocularis)
cysticercosis (T. solium)
sparganosis (spirometra spp.) |
|
|
Term
|
Definition
|
|
Term
Diphyllobothrium latum
(fish or broad tapeworm) |
|
Definition
Eggs: ovoid, 75 μm X 45 μm; Operculum (lid-like or cap-like cover); Terminal knob opposite operculum; contains undeveloped embryo.
Proximal jejunum, pernicious anemia |
|
|
Term
Eggs: ovoid, 75 μm X 45 μm; Operculum (lid-like or cap-like cover); Terminal knob opposite operculum; contains undeveloped embryo.
Proximal jejunum, pernicious anemia |
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Definition
Diphyllobothrium latum
(fish or broad tapeworm) |
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Term
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Definition
Diphyllobothrium latum
(fish or broad tapeworm) |
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Term
| Taenia solium (pork tapeworm |
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Definition
Egg: 35-45 μm, radial striations on yellow-brown outer shell, 3 pairs of hooklets.
Gravid proglottid: 7-12 lateral uterine branches
Cysticercus: wall, hooklets, scolex |
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Term
Egg: 35-45 μm, radial striations on yellow-brown outer shell, 3 pairs of hooklets.
Gravid proglottid: 7-12 lateral uterine branches
Cysticercus: wall, hooklets, scolex |
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Definition
| Taenia solium (pork tapeworm) |
|
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Term
| Taenia saginata (beef tapeworm) |
|
Definition
Egg: identical to T. solium egg
Gravid proglottid: 15-30 lateral uterine branches |
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Term
Egg: identical to T. solium egg
Gravid proglottid: 15-30 lateral uterine branches |
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Definition
| Taenia saginata (beef tapeworm) |
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Term
|
Definition
Human eats the infected meat
Muscle biopsy is used for trichinosis detection |
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Term
|
Definition
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|
Term
| Phthirus pubis (pubic louse) |
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Definition
| Crab-like round body and hooked claws |
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Term
|
Definition
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|
Term
| Pediculus humanus corporis |
|
Definition
|
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Term
|
Definition
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Term
|
Definition
Shiny black body
Hourglass shape marking on the abdomen
Bite: painful, muscle cramping, typically no tissue necrosis
Most commonly known dangerously venomous spider in USA |
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