  We use polarized magneto-Raman scattering to study purely electronic
excitations and the electron-phonon coupling in bulk graphite. At a temperature
of 4.2 K and in magnetic fields up to 28 T we observe $K$-point electronic
excitations involving Landau bands with $\Delta |n|=0$ and with $\Delta
|n|=\pm2$ that can be selected by controlling the angular momentum of the
excitation laser and of the scattered light. The magneto-phonon effect
involving the $E_{2g}$ optical phonon and $K$-point inter Landau bands
electronic excitations with $\Delta |n|=\pm1$ is revealed and analyzed within a
model taking into account the full $k_z$ dispersion. These polarization
resolved results are explained in the frame of the Slonczewski-Weiss-McClure
(SWM) model which directly allows to quantify the electron-hole asymmetry.
