lateral cervical spine radiographs, 1237 f lordosis, contour lines of alignment with, 1235 f management, 1232 –1239 manual immobilization, 1233 f prevertebral (retropharyngeal) soft tissues, inspiration/positioning on, 1238 f radiographic characteristics, 1237 t radiographic evaluation, 1234 f signs and symptoms, 1232 t Swischuk, posterior cervical line, 1236 f treatment, goals of, 1229 triage considerations, 1232 emergency care, goals of, 1214 hangman’s fracture, 1241 –1242 , 1241 f Jefferson fracture, 1239 –1241 anteroposterior (AP), 1240 f lateral cervical spine radiograph, 1241 f penetrating aerodigestive tract injuries, 1220 anatomic neck divisions, 1215 f–1219 f axial CTA of, 1218 f clinical assessment, 1220 clinical recognition, 1218 –1219 color flow Doppler (CFD), 1218 computed tomographic angiography (CTA), 1217 contents and structures, 1216 t discharge/admission, clinical indications, 1226 evaluation of, 1224 f, 1225 t evidences, 1215 –1218 history/physical examination, 1226 t management, 1220 –1226 negative predictive value (NPV), 1218 positive predictive value (PPV), 1218 sensory dermatomes, 1222 f–1223 f signs and symptoms of, 1221 t tracheal injury, 1225 f treatment goals, 1214 –1215