plumb line quizOnline version plumb by kenneth thomas 1 the plumb line should ideally pass through which of the following? a external auditory meatus b tragus c mastoid process 2 the plumb line should ideally pass through which of the following? a spinous of c7 b posterior body of c7 c anterior body of c7 3 the plumb line should ideally pass through which of the following? a lateral malleolus b 1" posterior to lateral malleolus c 1"anterior to lateral malleolus 4 the plumb line should ideally pass through which of the following? a center of sacral base b posterior 1/3 of sacral base c anterior 1/3 of sacral base 5 the plumb line should ideally pass through which of the following? a central shoulder b posterior shoulder c anterior shoulder