Protozoa and Nematodes Morphology PDF

PROTOZOA ORGANISM DIAGRAM MORPHOLOGICAL FORM & FEATURES TOXOPLASMA GONDII TACHYZOITES Nucleus is ovoid and situated at the blunt end...

PROTOZOA ORGANISM DIAGRAM MORPHOLOGICAL FORM & FEATURES TOXOPLASMA GONDII TACHYZOITES Nucleus is ovoid and situated at the blunt end Crescent shaped CRYPTOSPORIDIUM SP OOCYST Spherical shape Contains 4 crescent shaped sporozoites LEISHMANIA AMASTIGOTE Large oval nucleus Kinetoplast lying right angle to nucleus LEISHMANIA PROMASTIGOTE Long spindle shape No undulating membrane By: Zeeshan Naseer BALANTIDIUM COLI Trophozoite Ovoid shaped Has cilia covered all surface CYST Spherical in shape Surrounded by thick, transparent double layered wall TRYPANOSOMA BRUCEI Tryphomastigote: Spindle shaped body Undulating membrane and flagella present TRICHOMONAS VAGINALIS Trophozoite: Pear shaped Short undulating membrane reaching up to the middle of the body By: Zeeshan Naseer ACANTHAMOEBA SP Polygonal double walled cyst Large and characterized by spine like pseudopodia NAEGLERIA FOWLERI Rounded pseudopodia Spherical nucleus with big endosome Pulsating vacuoles By: Zeeshan Naseer ENTAMOEBA SPP CYST Quadrinucleate Highly refractile membrane CYSTOISOPORA BELLI OOCYST Oocyst surrounded by a thin smooth 2 layered cyst wall Elongated and ovoid shape GIARDIA LAMBLIA CYST Small, oval and surrounded by a hyaline cyst wall 2 pairs of nuclei By: Zeeshan Naseer  NEMATODES ORGANISM DIAGRAM MORPHOLOGICAL FORM & FEATURES HOOKWORM EGG Oval/elliptical Colorless Surrounded by thin hyaline sheath Clear space between segmented ovum and shell Segmented ovum: with 4-8 blastomeres TRICHINELLA SPP Anterior half of body is thin and pointed Small By: Zeeshan Naseer TAENIA SPP EGG Thick radially striated shell ENTEROBIUS EGG VERMICULARIS Elongated ovoid Double layered and relatively thick Contains tadpole-shaped coiled embryo TRICHURIS TRICHIURA EGG Triple shelled Barrel shaped Mucus plug at each pole containing unsegmented ovum By: Zeeshan Naseer ASCARIS LUMBRICOIDES FERTILIZED EGGS Round/ oval Golden Brown Surrounded by thick smooth translucent shell Large unsegmented ovum in the middle of the egg BRUGIA TIMORI Sheathed, sheath longer than the body Sharp and kinky curves STRONGYLOIDES Thin STERCORALIS Transparent Has cylindrical esophagus By: Zeeshan Naseer ASCARIS LUMBRICOID UNFERTILIZED EGG Elliptical in shape Narrower and longer Thinner shell with irregular coating of albumin Contains a small atrophied ovum LOA LOA Thin and transparent Microfilariae are sheathed with column of nuclei extending completed to the tip of the tail By: Zeeshan Naseer  CESTODES AND TREMATODES ORGANISM DIAGRAM MORPHOLOGICAL FORM & FEATURES SCHISTOSOMA MANSONI EGG Non Operculated , brownish Lateral spine more near to rounded posterior end SCHISTOSOMA EGG HAEMATOBIUM Ovoid Nonoperculated Brownish yellow shell carrying a terminal spine at one end SCHISTOSOMA EGG JAPONICUM Small and spherical Has no spine, but shows a lateral small rudimentary knob DIPHYLLOBOTHRIUM EGG LATUM Broadly ovoid with a thick light brown shell Operculum at one end and small knob on other end By: Zeeshan Naseer HYMENOLEPIS NANA EGG Thin colorless outer membrane and inner embryophore Space between the 2 membrane has yolk granules and 4-8 thread like filaments arising from 2 knobs on embryophore ECHINOCOCCUS SPP EGG Ovoid in shape and brown in color Contains an embryo with 3 pairs of hooklet FASCIOLA HEPATICA EGG Large, oval Opperculated Bile stained By: Zeeshan Naseer PARAGONIMUS EGG WESTERMANI Upperculated , golden brown in color Thick shelled OPISTHORCHIS SINENSIS EGG Opperculated Prominent opercular shoulders and abopercular knob By: Zeeshan Naseer