The solar chromosphere is occupied with a wealth of fine structures
referred to by diverse nomenclature. Recent identification of
slow-mode magnetoacoustic shocks, excited by p-modes of photospheric
oscillations, as plausible drivers of dynamic fibrils and spicules was
followed by a surge of observational studies and numerical simulations
attempting to reveal the role of chromospheric fine structure in
energizing of the upper solar atmosphere. The paper summarizes
didactically this breakthrough and provides ample references on the
pertinent literature
