_____ is the ability of a cardiac cell to shorten and cause a muscular contraction

LZ _______ is of critical importance from the time of initial approach until the aircraft departs. _______ personnel and all vehicles and equipment must be kept clear of the LZ during this period

Fill in the blank(s) with correct word

Which of the following occlusal radiographs yields more information about the location of tori and impacted or malpositioned teeth and calcifications of soft tissues?

A) Maxillary anterior topographical B) Maxillary posterior topographical C) Mandibular posterior topographical D) Mandibular cross sectional