"Histology (compound of the Greek words: \u1F31\u03C3\u03C4\u03CC\u03C2 histos \"tissue\", and -\u03BB\u03BF\u03B3\u03AF\u03B1 -logia \"science\") is the study of the microscopic anatomy of cells and tissues of plants and animals. It is commonly performed by examining cells and tissues under a light microscope or electron microscope, which have been sectioned, stained and mounted on a microscope slide."@en . . . .