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Different types of anatomy. 1  Gross anatomy involves anything that could be seen with your unaided eye. 2  Surface anatomy is a subset of gross anatomy that is anything that can be revealed on the skin. 3  Microscopic anatomy is known as histology which is the study of tissues.
Covering several Ocelli on each side of the head seems to impair form vision, so the brain must be able to construct a coarse mosaic of nearby objects from the visual fields of adjacent Ocelli. Two types of simple eyes can be found in the class Insecta: dorsal Ocelli and lateral Ocelli (=stemmata). Although both types of Ocelli are similar in structure, they are believed to have separate phylogenetic and embryological origins.