Noun
microanatomy (countable and uncountable, plural microanatomies)
Microscopic anatomy: the anatomy of minuscule structures, at microscopic scale.
Synonym of histology.
Microanatomy Numerous gut granules are present in the intestine of C. elegans, the functions of which are still not fully known, as are many other aspects of this nematode, despite the many years that it has been studied. Source: Internet
This is described in more detail below. citation Microanatomy A respiratory lobule, the functional unit of the lung. Source: Internet