Whenever challenges to individual grand jurors are allowed, the court shall make an order to the sheriff, deputy sheriff, or coroner, to summon without delay, from the residents of the county, a sufficient number of persons to complete or to form a grand jury. A grand jury formed and impaneled as to and in a particular case, after a challenge or challenges to individual grand jurors have been allowed, shall be sworn to act only in such particular case, and as to all other cases at the same term of that grand jury, the grand jury shall be formed in the usual manner provided by law.