A stained histologic specimen, sandwiched between a glass microscope slide and coverslip , mounted on the stage of a light microscope.
Microscopic view of a histologic specimen of human lung tissue stained with haematoxylin and eosin .
Masson's trichrome stain of rat airway. Connective tissue is stained blue, nuclei are stained dark red/purple, and cytoplasm is stained red/pink.
Drawing of Purkinje cells (A) and granule cells (B) from pigeon cerebellum by Santiago Ramón y Cajal, 1899. Instituto Santiago Ramón y Cajal, Madrid, Spain
Microphotograph of a histological section of human skin prepared for direct immunofluorescence using an anti-IgA antibody . IgA deposits are in the walls of small superficial capillaries (yellow arrows). The pale wavy green area on top is the epidermis , the bottom fibrous area is the dermis .
Histology is the study of the microscopic anatomy of cells and tissues of plants and animals , particularly the tissues. It is a part of cytology , and an essential tool of biology and medicine .
Histology is usually done by looking at cells and tissues under a light microscope or electron microscope . The tissue has to be specially prepared beforehand.