arXiv hepph  The spinpolarizabilities  and  are dominated by destructively interfering components from the pion cloud and the spin structure of the nucleon The different signs obtained for the proton and the neutron are due to this destructive interference The spinpolarizabilities  and  have a minor component due to the structure of the nucleon nucleon and a major component due to the pseudoscalar mesons   and  as structure components of the constituent quarks const quark   The agreement with the experimental data is excellent in all eight cases   Summary   In the foregoing we have shown that the polarizabilities of the nucleon are well understood Differing from previous belief the mesonic structure of the constituent quark is essential for the sizes and the general properties of the polarizabilities