双语教学

Explain of Cellular Injury

1. Atrophy, testis, gross

There are some muscle fibers here that show atrophy. The number of cells is the same as before the atrophy occurred, but the size of some fibers is reduced. This is a response to injury by "downsizing" to conserve the cell. In this case, innervation of the small fibers in the center was lost. This is a trichrome stain.

（本图片资料来源自美国犹他大学）