  The work deals with one of the topics of collective motion. In the frame of
Nuclear Fluid Dynamics, a model which portrays the nuclear matter as a quantum
elastic body, the torus-like motions and their associated energies are computed
using the thirteen moment approximation. The spin-dependent collective
excitations, with toroidal electromagnetic structure, are studied by means of
the Generalized Goldhaber-Teller model, with emphasize on the 1$^{-}$ spin-flip
mode and its excitation in spherical nuclei by inelastic electron scattering.
We discuss the importance of toroidal contributions in the inclusive electron
scattering $(e, e')$ and exclusive coincidence electron scattering $(e,
e'\gamma)$. In order to extract the toroidal multipole, we use the
backscattering angles in the first mentioned reaction, and the separation of
the longitudinal/transverse interference in the second case. The introduction
of a quantity which accounts for the deviations from the Siegert theorem, shows
the importance of toroidal quadrupole transitions at high-momentum transfer.
