Microscope light parts part diagram function definition diaphragm iris study lesson water source laboratory lab base summary Ojo bastones microscope humano cuerpo electron conos microscopio microscopic scanning retina partes ciliar zona cristalino ciliary anatomia elmundo Lab 1: the laboratory microscope
Iris Diagram Microscope
Iris of the human eye as seen through an electronic microscope The microscope’s iris diaphragm: what it does and how it works