Hospital hamburger

This is what they serve in the hospital. Is has the shape of a hamburger, but it’s contents are mainly fat tissue (50%), nerves, salivary glands and a tiny bit of muscle (the real meat was less than 10%). Really food horror from the hospital.


A Giema stained slide from duodenal mucosa. The little dark creatures on top are parasites named Giardia. They can live without oxigen (anaerobic). To move around they have 4 pairs of flagellates. Accorinding to info on wiki Giardia were first described by the Antonie van Leeuwenhoek (a Dutch microscopist) in 1681. The genus is named after…

Red onion

Tissue from an red onion is a good first exercise in using the foldscope and viewing plant cells. White lines: plant cell walls. Pink: cytoplasm. Lighter pink dots: nuclei.