  In this paper mathematical models are formulated in order to simulate heat
production and corresponding temperature changes which accompany the
propagation of an axon potential. Based on earlier experimental results,
several models are proposed. Together with the earlier system of coupled
differential equations derived by the authors for describing the electrical and
mechanical components of signalling in nerve fibres, the novel results permit
to cast the whole process of signalling into one system. The emphasis is on the
mathematical description of coupling forces. The numerical results are
qualitatively similar to experiments.
