<prompt> Lymphocytes and plasma cellsAre not normally present in healthy pulpAre associated with injuryAttempt to destroy , damage or neutralize foreign substanceAll of the above  <response>: Lymphocytes and plasma cells: These cells are not normally present in healthy pulp tissue but are associated with injury and resultant immune responses attempts to destroy, damage, or neutralize foreign substance.These inflammatory cell types generally appear following invasion into the area of injury. 