A brief description of continuum mechanics is given, first. Then, a general introduction on biomechanics is presented, along with some salient features of it, which should be kept in mind when one is working in this field. The manuscript will continue with an introduction on bone remodelling process, then some phenomenological models on the bone remodelling process will be introduced. A general description of bone resorption, and two mixture models, with chemical reactions, on bone resorption will make the next section. Finally, discussion and some conclusions are made on the positive, also improvable aspects of the reviewed models of bone remodelling, and bone resorption. Keywords: сontinuum mechanics; biomechanics; bone cells; remodeling; resosrption; mixture theories; chemical reactions