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A Transurethral Resection of the Prostate or TURP is a procedure to expand the dimensions of the urethra or urine outflow tract. This video shows what a urologist sees during a TURP. Note that this video shows surgery on an living human.

This stylized animation shows what a cell might look like at very high magnification. It begins by showing the cell membrane and the proteins that hold the cell together. The video continues to describe the internal workings of a cell. While the narration is very detailed and accurate, this video may use terminology that is advanced for a general audience.

This narrated animation explains how normal cells sometimes change and turn into cancer cells. It touches on some of the causes and the prevalence of cancer and cancer deaths in the population.

This animation provides a very brief overview of body anatomy, from the entire body down to subcellular organelles.