Diagnostic egg morphology difference between Schistosoma mansoni and Schistosoma haematobium?

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Study for the Introduction to Parasitology Test. Use flashcards and multiple-choice questions, each question offers hints and explanations. Prepare for your exam thoroughly!

Multiple Choice

Diagnostic egg morphology difference between Schistosoma mansoni and Schistosoma haematobium?

Explanation:
The distinguishing feature here is where the spine sits on the egg. Schistosoma mansoni eggs have a large spine on the side (a lateral spine), which is characteristic when you’re looking at eggs from fecal samples. Schistosoma haematobium eggs, on the other hand, have a spine at the tip of the egg (a terminal spine), a hallmark seen in eggs from urine samples. This difference in spine position is the key microscopic clue used to tell these two species apart.

The distinguishing feature here is where the spine sits on the egg. Schistosoma mansoni eggs have a large spine on the side (a lateral spine), which is characteristic when you’re looking at eggs from fecal samples. Schistosoma haematobium eggs, on the other hand, have a spine at the tip of the egg (a terminal spine), a hallmark seen in eggs from urine samples. This difference in spine position is the key microscopic clue used to tell these two species apart.

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