than applied anatomy. Yet the more one description have consisted of minor modifi- examines the current technics of regional cations of the position of the “primary line” anesthesia, the more one is impressed with connecting the tip of the mastoid process the degree to which anatomy has been ig- and the anterior tubercle of the 6th cervical nored. Nowhere is this more true than in vertebra, in order to place this line more the complex technics for anesthesia of the precisely over the tips of the cervical trans-
nothing more than applied anatomy, a tion of this line varied from technic to tech- study of the pertinent anatomy indicates nic while the underlying anatomy obviously that identical anesthesia can be obtained remained constant indicates the lack of ac- using a much simpler, safer, single-injection