Podcast
Questions and Answers
What is the shape of the tachozoite of Toxoplasma gondii?
What is the shape of the tachozoite of Toxoplasma gondii?
Crescent shaped
How many sporozoites are present within the Cryptosporidium oocyst?
How many sporozoites are present within the Cryptosporidium oocyst?
4
What is the shape of the Leishmania amastigote?
What is the shape of the Leishmania amastigote?
Large oval
What is the defining feature of the Leishmania promastigote?
What is the defining feature of the Leishmania promastigote?
Signup and view all the answers
What covers the entire surface of Balantidium coli trophozoite?
What covers the entire surface of Balantidium coli trophozoite?
Signup and view all the answers
What is the shape of Balantidium coli cyst?
What is the shape of Balantidium coli cyst?
Signup and view all the answers
What shape is the body of Trypanosoma brucei trypomastigote?
What shape is the body of Trypanosoma brucei trypomastigote?
Signup and view all the answers
What shape is the Trichomonas vaginalis trophozoite?
What shape is the Trichomonas vaginalis trophozoite?
Signup and view all the answers
What is the defining characteristic of the Acanthamoeba cyst?
What is the defining characteristic of the Acanthamoeba cyst?
Signup and view all the answers
Choose the characteristics of the Naegleria fowleri trophozoite. (Select all that apply)
Choose the characteristics of the Naegleria fowleri trophozoite. (Select all that apply)
Signup and view all the answers
What is the shape of the Cystoisospora belli oocyst?
What is the shape of the Cystoisospora belli oocyst?
Signup and view all the answers
How many nuclei are present in the Giardia lamblia cyst?
How many nuclei are present in the Giardia lamblia cyst?
Signup and view all the answers
What is the shape of the Hookworm egg?
What is the shape of the Hookworm egg?
Signup and view all the answers
What is the defining feature of the Trichinella larval stage?
What is the defining feature of the Trichinella larval stage?
Signup and view all the answers
What is the most distinguishing feature of the Taenia egg?
What is the most distinguishing feature of the Taenia egg?
Signup and view all the answers
What is the shape of the Enterobius vermicularis egg?
What is the shape of the Enterobius vermicularis egg?
Signup and view all the answers
What is the shape of the Trichuris trichiura egg?
What is the shape of the Trichuris trichiura egg?
Signup and view all the answers
What is the color of Ascaris lumbricoides fertilized eggs?
What is the color of Ascaris lumbricoides fertilized eggs?
Signup and view all the answers
What is a notable feature of the Brugia timori microfilariae?
What is a notable feature of the Brugia timori microfilariae?
Signup and view all the answers
What is the typical esophagus of Strongyloides stercoralis microfilariae?
What is the typical esophagus of Strongyloides stercoralis microfilariae?
Signup and view all the answers
What is the defining feature of the Ascaris lumbricoid unfertilized eggs?
What is the defining feature of the Ascaris lumbricoid unfertilized eggs?
Signup and view all the answers
What is the most noticeable characteristic of Loa loa microfilariae?
What is the most noticeable characteristic of Loa loa microfilariae?
Signup and view all the answers
What is the color of the Schistosoma mansoni egg?
What is the color of the Schistosoma mansoni egg?
Signup and view all the answers
What is the color of the Schistosoma haematobium egg?
What is the color of the Schistosoma haematobium egg?
Signup and view all the answers
How would you describe the Schistosoma japonicum egg?
How would you describe the Schistosoma japonicum egg?
Signup and view all the answers
What is the shape of the Diphyllobothrium latum egg?
What is the shape of the Diphyllobothrium latum egg?
Signup and view all the answers
What are the defining structures present in the Hymenolepis nana egg?
What are the defining structures present in the Hymenolepis nana egg?
Signup and view all the answers
Describe the shape and color of the Echinococcus egg.
Describe the shape and color of the Echinococcus egg.
Signup and view all the answers
What are the defining characteristics of the Fasciola hepatica egg?
What are the defining characteristics of the Fasciola hepatica egg?
Signup and view all the answers
What is the color of the Paragonimus westermani egg?
What is the color of the Paragonimus westermani egg?
Signup and view all the answers
What is a notable feature of the Opisthorchis sinensis egg?
What is a notable feature of the Opisthorchis sinensis egg?
Signup and view all the answers
Study Notes
Protozoa
- Toxoplasma Gondii: Tachyzoites have a crescent shape, with the nucleus positioned at the blunt end.
- Cryptosporidium sp: Oocysts are spherical and contain four crescent-shaped sporozoites.
- Leishmania: Amastigotes are large oval-shaped, and the kinetoplast lies at a right angle to the nucleus.
- Leishmania: Promastigotes are long spindle-shaped and lack an undulating membrane.
Balantidium coli
- Trophozoites: Ovoid shaped, and covered in cilia
- Cysts: Spherical, surrounded by a thick, transparent double-layered wall
Trypanosoma brucei
- Trypomastigote: Spindle-shaped body, with an undulating membrane and flagella present.
Trichomonas vaginalis
- Trophozoite: Pear-shaped, with a short undulating membrane reaching the body's middle.
Acanthamoeba sp
- Cyst: Polygonal, double-walled, and characterized by spine-like pseudopodia and large pseudopodia.
Naegleria fowleri
- Pseudopodia: Rounded
- Nucleus: Spherical with a large endosome
- Vacuoles: Pulsating vacuoles
Entamoeba spp
- Cyst: Quadrinucleate, highly refractile membrane.
Cystoisospora belli
- Oocyst: Surrounded by a thin, smooth, two-layered cyst wall. Elongated and ovoid shape.
Giardia lamblia
- Cyst: Small, oval, surrounded by a hyaline cyst wall. Contains two pairs of nuclei.
Nematodes
- Hookworm: Eggs are oval/elliptical, colorless, and surrounded by a thin hyaline sheath. Segmented ovum: with 4-8 blastomeres, clear space between segmented ovum and shell.
- Trichinella spp: Anterior half of body is thin and pointed, small in size.
- Taenia spp: Eggs have a thick, radially striated shell.
- Enterobius vermicularis: Eggs are elongated ovoid, double layered and relatively thick, tadpole-shaped coiled embryo present.
- Trichuris trichiura: Eggs are triple-shelled, barrel-shaped, with a mucus plug at each pole containing unsegmented ovum.
Ascaris lumbricoides
- Fertilized Eggs: Round/oval, golden brown, surrounded by a thick, smooth, translucent shell. Large unsegmented ovum in the middle of egg.
- Unfertilized Eggs: Elliptical, narrower and longer, thinner shell with irregular coating of albumen. Contains small atrophied ovum.
Brugia timori
- Sheathed: Sheath is longer than the body, sharp and kinky curves in shape.
Strongyloides stercoralis
- Thin and transparent: Cylindrical esophagus
Loa Loa
- Thin and transparent: Microfilariae are sheathed with column of nuclei extending to tip of tail.
Cestodes and Trematodes
- Schistosoma mansoni: Eggs are non-operculated, brownish, and lateral spines are near the rounded posterior end.
- Schistosoma haematobium: Eggs are ovoid, non-operculated, brownish-yellow with a terminal spine at one end.
- Schistosoma japonicum: Small, spherical eggs without any spines; rudimentary lateral knob present.
- Diphyllobothrium latum: Eggs are broadly ovoid, with a thick light-brown shell, operculum on one end and small knob on the other end.
Hymenolepis nana
- Eggs: Thin, colorless outer membrane and inner embryophore; space between membranes has yolk granules and thread-like filaments arising from knobs on embryophore.
Echinoccocus spp
- Eggs: Ovoid, brown; contain embryo with three pairs of hooklets.
Fasciola hepatica
- Eggs: Large, oval, operculated, and bile-stained.
Paragonimus westermani
- Eggs: Upperculated, golden brown, thick-shelled.
Opisthorchis sinensis
- Eggs: Opperculated, prominent opercular shoulders and abopercular knob.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
