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Neutrophil’s drumstick

A drumstick consists of a small nuclear mass, about 1.5µ in diameter, which is attached to the body of the nucleus by means of a thin filament. Drumsticks may occur in any of the ...

Candida parapsilosis Morphology on Cornmeal Agar

Candida parapsilosis produces a crop of separated foci of growth that show radiating pseudohyphae and scattered blastoconidia, producing what are known as “spider” or “crossed ...

Geotrichum species Morphology on Cornmeal agar

Geotrichum species When grown on cornmeal agar are characterized by true hyphae that segment into rectangular arthroconidia. Arthrospores germinate from one corner, giving them a “hockey ...

Yeasts identification on Cornmeal Agar (CMA)

(a) Candida albicans: green, smooth colonies; CMA: large, thick-walled chlamydospore, usually terminal and present singly or in small clusters along with clusters of round blastoconidia. ...

Flotation Technique for Fecal Parasite Concentration Methods

This technique is predominantly used in parasitology laboratories. By exploiting the density of the parasites, particularly eggs, it allows the parasites to float to the top of a dense ...

Calcium phosphate crystals in urine

Calcium phosphate crystals are normal in urine and their appearance look like a large flat-shaped plates orwedge-shaped prisms. THe prisms often appear in rosettes. Single prisms are ...

Blastocystis hominis

Introduction B. hominis is an inhabitant of the human intestinal tract. It is capable of both sexual and asexual reproduction by binary fission and of pseudopod extension and retraction. Morphology The ...

Iodamoeba bütschlii

Introduction Iodamoeba bütschlii is a non-pathogenic amoeba with world wide distribution although not as common as E. coli or E. nana. Its life cycle is similar to that of E. histolytica ...

Regulation of RBC Production

Tissue oxygenation regulates RBC production. If the amount of oxygen transported to the tissues decreases, the rate of RBC production increases. The Feedback Mechanism: Tissue hypoxia ...

Formation of RBCs

An erythrocyte (erythro = red) is a fully mature red cell found in the peripheral blood. Although highly specialized, it is little more than a small bag – a membrane surrounding a ...

Hematopoiesis (The Formation of Blood Cells)

All blood cells begin as undifferentiated stem cells capable of reproducing themselves. Generations of cells eventually differentiate into cell lines that will mature to produce erythrocytes, ...

Blood Cells and Platelets

The blood has three types of formed elements: erythrocytes (red blood cells), leukocytes (white blood cells), and platelets or thrombocytes . Erythrocytes:  Also called red blood ...
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