Onkyo's website refers to this unit as a 7.2-channel receiver. It is clear from one of your photographs, but from no text in the review, that the height speaker terminals can be used as rear surround speaker terminals instead, for a 7.1 (or 7.2) channel setup.
In many cases, the students dissect human corpses (cadavers). Microscopic anatomy, also known as histology, is the study of cells and tissues of animals, humans and plants that are too small to been seen with the naked eye.
Comparative physiology and eco-physiology emerged in the 20th century. Cell theory led to the rapid accumulation of knowledge in physiology. Gross anatomy and microscopic anatomy are the branches of anatomy. Gross anatomy is also known as macroscopic anatomy.